Dental material with color indicator and methods of using same

A dental material is provided that exhibits a color change upon or after mixing or contacting components of the composition. The composition includes an acidic component in one part, and a basic component in another part that upon contact with the acidic component initiates a chemical reaction thereof that alters the pH of the composition. An acid or base sensitive color change agent is present in the composition that registers the change in pH by changing color as the pH changes.

Disulfide monomers comprising ethylenically unsaturated groups suitable for dental compositions

Dental compositions and disulfide monomers are described. The disulfide monomer comprise a disulfide backbone group wherein each of the sulfur atoms are bonded to an ethylenically unsaturated group via a divalent linking group and the linking group comprises at least one heteroatom; and at least one other monomer ethylenically unsaturated monomer.

Organic/inorganic composite filler and manufacturing method therefor

Disclosed is an organic/inorganic composite filler that contains: inorganic agglomerated particles comprising agglomerations of inorganic primary particles having a mean diameter between 10 and 1000 nm; an organic resin phase that covers the surface of each inorganic primary particle and binds the inorganic primary particles to each other; and intra-agglomerate voids, formed between the organic resin phase covering the surface of each inorganic primary particle, with a pore volume (here, “pore” refers to holes with diameters between 1 and 500 nm) between 0.01 and 0.30 cm 3 /g as measured by mercury intrusion porosimetry. Also disclosed is a method for manufacturing the above organic/inorganic composite filler.

Kit and method for producing bone cement

A kit for producing bone cement includes at least one paste A and one paste B. Paste A contains at least one monomer (a1) for radical polymerization; at least one polymer (a2) insoluble in monomer (a1); at least one polymer (a3) soluble in monomer (a1); and at least one radical polymerization initiator (a4). The weight ratio of the at least one polymer (a2) to the at least one polymer (a3) is at least 2 to 1. Paste B contains at least one monomer (b1) for radical polymerization; at least one polymer (b2) and at least one accelerator (b3) soluble in monomer (b1); and optionally a polymer (b4) insoluble in monomer (b 1 ). The maximum quantity of polymer (b4) is 5% by weight, relative to the total weight of paste B. The weight ratio of polymer (b4) to the at least one polymer (b2) is no more than 0.2.

Method and Apparatus for Preparing a Ceramic Dental Restoration in One Appointment

Methods and apparatus that permit a dentist to provide a patient with a monolithic ceramic dental restoration (e.g., crown, bridge, or the like) in one office visit. In some embodiments, a dentist is provided with a kit containing one or more near net shape (NNS) millable blanks of various shapes and shades, chair-side software, and a chair-side milling machine to convert a selected millable blank into a finished, fully contoured restoration in about one hour or less. Each such millable blank may be, for example, a dental ceramic (e.g., fully sintered zirconia, fully crystallized lithium silicate, fully crystallized lithium disilicate, or the like) NNS component. In some embodiments, the NNS component includes an integral mandrel at a precise location and orientation to minimize the amount of milling time.

Compositions for endodontic procedures

An adhesion promoter for endodontic sealant compositions for filling and sealing a root canal.

APPARATUS AND METHOD FOR REHABILITATION OF GUM ARCHITECTURE

The invention relates to dental field, more specifically in the field of periodontics, and describes the construction and working of a modular gum architecture device made of inert, biocompatible, bone-integrable and/or absorbable material to replace in part or totally the lost alveolar bone and restore the anatomy of the gum around the tooth or implant. The device may recreate the region of the interdental papilla or may fill in empty spaces caused by protocol-type prostheses (fixed dentures). It can also serve as support for teeth already softened or softening, for implants already installed or even for implants to be installed. 1- Apparatus for rehabilitation of gum architecture , comprising:{'b': '110', 'A solid, biocompatible, bone-integrable, inert and resorbable material, being defined by part (),'}{'b': 210', '310', '410', '450', '410', '450, 'dividable into modules (, , to ) and the mirrored correspondents ( to ),'}{'b': 120', '120, 'with an incision-cervical orifice () or curvature (),'}{'b': '1710', 'with or without a thread on the inside and holes () in its structure.'}2- Apparatus for rehabilitation of gum architecture claim 1 , in accordance with claim 1 , comprising:{'b': 710', '130, 'flaps of occlusal-cervical () and mesio-distal () in the interproximal region'}3101011101210- Apparatus for rehabilitation of gum architecture claim 1 , according to claim 1 , comprising joints ( claim 1 , claim 1 , )413101510155015101550- Apparatus for rehabilitation of gum architecture claim 1 , according to claim 1 , comprising a superstructure () and its variant forms ( to and to )5- Apparatus for rehabilitation of gum architecture claim 1 , according to claim 1 , comprising a device contained in a biomaterial block6- Method for rehabilitation of gum architecture claim 1 , comprising the rehabilitation of hard (bone) and soft (gum) tissues by gum detachment and injection of biocompatible claim 1 , integrable claim 1 , inert claim 1 , polymerizable bone material claim ...

LOW WATER-SENSITIVE DENTAL COMPOSITION

An object of the present disclosure is to provide a dental composition that can exhibit sufficient curability even in a state where moisture is excessive as in the oral environment. The dental composition of the present disclosure contains component (a): monomer containing (meth)acrylamide group represented by formula (1): 4. The dental composition of claim 2 ,wherein all Rs in the formula (2) are hydrogen atom.5. The dental composition of any one of claim 3 ,wherein a monomer which is not represented by the formula (1) and contains (meth)acrylamide group is not contained.6. The dental composition of claim 2 ,wherein the dental composition is a dental composite material composition and further containscomponent (b): filler,component (c): monomer other than the component (a), andcomponent (d): polymerization initiator, andwherein a ratio of the component (a) in the total amount of the component (a) and the component (c) is within a range of 0.1 to 20 wt. %.7. The dental composition of claim 2 ,wherein the dental composition is a resin cement and further containscomponent (b): filler,component (f): polymerization catalyst,component (g): silane coupling agent,component (h): radical polymerizable monomer, andcomponent (i): acidic group-containing monomer, andwherein 0.1 to 20 parts by weight of the component (a) is contained with respect to 100 parts by weight of the component (h).8. The dental composition of claim 2 ,wherein the dental composition is a denture restorative material and further containscomponent (c): monomer other than the component (a),component (j): (meth) acrylic acid (co) polymer, andcomponent (f): polymerization catalyst, andwherein a ratio of the component (a) in the total amount of the component (a) and the component (c) is within a range of 0.1 to 20 wt. %, andwherein the component (f) contains at least one of a combination of a barbituric acid derivative and a halogen ion-forming compound and a combination of an organic peroxide and an amine ...

TOOTH MINERALIZATION SOLUTION AND MINERALIZATION METHOD THEREOF

Disclosure is a tooth mineralization solution and a mineralization method thereof. The tooth mineralization solution can be used to mineralize collagen and teeth. The mineralization solution component of the present application comprises two parts, namely, reagent A containing non-collagenous protein analogue and calcium salt, and reagent B is phosphate solution. The mineralization method of the tooth mineralization solution of the present application comprises the steps of first applying the reagent A to the surface of tooth, and then applying the reagent B to achieve tooth mineralization. In addition, the mineralization solution of the present application can also be used to achieve biomimetic mineralization of collagen by the same method, comprising the steps of soaking or floating single-layer reconstituted collagen fibril, collagen gel or collagen sponge in the reagent A, and then soaking or floating in the reagent B to achieve biomimetic mineralization. 1. A tooth mineralization solution , comprising a reagent A and a reagent B;wherein the reagent A is a solution comprising non-collagenous protein analogue and calcium salt; the non-collagenous protein analogue is one or more of a group consisting of polyaspartic acid, polyacrylic acid, polyvinylphosphonic acid, polyglutamic acid, carboxymethyl chitosan, sodium trimetaphosphate or sodium tripolyphosphate; the calcium salt is one or more of a group consisting of calcium chloride or a hydrate thereof, calcium fluoride or a hydrate thereof, calcium carbonate or a hydrate thereof, calcium nitrate or a hydrate thereof, or calcium acetate or a hydrate thereof; in the reagent A, the non-collagenous protein analogue accounts for 0.001 g/L-20 g/L, and a concentration of calcium ions is 0.001 mol/L-10 mol/L;the reagent B is a phosphate solution; the phosphate is one or more of a group consisting of trisodium phosphate, tripotassium phosphate, disodium hydrogen phosphate, dipotassium hydrogen phosphate, sodium dihydrogen ...

ADDITIVE MANUFACTURING PROCESS

An additive manufacturing process comprising: 1. An additive manufacturing process comprising: [{'sub': '3,99', '(i) a filler comprising glassflakes having a diameter Das determined by light scattering in the range of from 5 to 150 μm; and'}, '(ii) one or more curable compounds;, '(a) providing a curable composition comprising{'sub': 'min', '(b) controlling an apparatus to form an object by using the curable composition, whereby the curable composition passes a discharge orifice having a minimum diameter Φ,'}{'sub': 3,99', 'min', '3,99', '3,50, 'wherein the ratio of the minimum diameter of the discharge orifice to the diameter Dof the glassflakes (Φ/D) is in the range of 2 to less than 10; and wherein the median diameter Dof the glassflakes is larger than the average thickness of the glassflakes.'}2. The process according to claim 1 , further comprising the step of(c) curing the curable composition.3. The process according to claim 1 , which is for preparing a dental appliance.4. The process according to claim 1 , wherein the filler of the curable composition further comprises a structural filler having a Dparticle diameter of less than 5 μm.5. The process according to claim 1 , wherein the curable composition further comprises a photoinitiator system and/or a thermoinitiator system and/or a redox initiator system.6. The process according to claim 1 , wherein the additive manufacturing process is selected from a jetting process and an extrusion process.7. The process according to claim 1 , wherein the discharge orifice forms part of a nozzle.8. The process according to claim 7 , wherein the nozzle forms part of a cartridge for storing and discharging the curable material claim 7 , or wherein the nozzle forms part of the apparatus.9. The process according to claim 1 , wherein the minimum diameter of the discharge orifice is in the range of from 10 to 1500 μm.10. The process according to claim 1 , wherein the glassflakes have a median particle diameter Dof 3 to 25 μm ...

Dental veneers and methods of manufacture

A dental veneer made from a composite comprising at least one organic binder, preferably with methacrylate, and inorganic solid particles as fillers.

Dental adhesive composition including chain transfer agent

To provide a dental adhesive composition comprising: (a) an acidic group-non-containing polymerizable monomer, (b) an acidic group-containing polymerizable monomer, (c) a filler, (d) a photo polymerization initiator, and (e) a chain transfer agent, wherein the chain transfer agent (e) contains α-alkylstyrene compound.

Dental composition

The present invention relates to a dental composition comprising a specific polymerizable compound and a polymerization initiator system. Furthermore, the present invention relates to the specific polymerizable compound as such and its use in a dental composition. The specific polymerizable compound of the present invention has an N-allyl (meth)acrylamide group, which nitrogen atom is substituted with an alkyl or alkenyl group optionally substituted by a group selected from a hydroxyl group, a C 1-4 alkoxy group, a tertiary amino group and a carboxyl group, wherein 1 to 8 carbon atoms in the main chain of the alkyl or alkenyl group may independently from each other be replaced by a heteroatom selected from an oxygen atom and a sulfur atom.

HIGHLY LOADED METAL OXIDE MATERIALS BY SELF-ASSEMBLY FOR EXTENDED BIOLOGICALLY ACTIVE MOLECULE RELEASE IN MEDICAL AND DENTAL APPLICATIONS

A biocompatible composite material for controlled release is disclosed, comprising a biocompatible metal oxide structure with a loaded network of pores. The pore network of the biocompatible composite material is filled with a uniformly distributed biologically active micellizing amphiphilic molecule, the size of these pores ranging from about 0.5 to about 100 nanometers. The material is characterized in that when exposed to phosphate-buffered saline (PBS), the controlled release of the active amphiphilic molecule is predominantly diffusion-driven over time. 1. A biocompatible composite material for controlled release , comprising:a biocompatible metal oxide structure containing a network of pores, said pores containing a biologically active agent, wherein the biologically active agent has a biocompatibility index of greater than 1, and wherein the active agent has amphiphilic characteristics resulting in micellization when placed in aqueous conditions.2. The composite material of claim 1 , wherein the biologically active agent is a pharmaceutical drug claim 1 , a pharmaceutical conjugated drug claim 1 , a pharmaceutical prodrug claim 1 , an antimicrobial claim 1 , an antiseptic agent claim 1 , an antifungal agent claim 1 , a peptide claim 1 , DNA or combinations thereof.3. The composite material of claim 1 , wherein the biologically active agent is an antimicrobial agent.4. The composite material of claim 1 , wherein the biologically active agent is any one of octenidine dihydrochloride claim 1 , polyhexamethylene biguanide claim 1 , cetylpyridinium chloride or lauric arginate.5. The composite material of wherein the biologically active agent comprises octenidine or a salt thereof.6. The composite material of having a controlled release of the biologically active agent from the composite material in phosphate-buffered saline (PBS) claim 1 , wherein the rate of release is predominantly driven by the diffusion of the biologically active agent out of the metal oxide ...

POLYMERIZABLE DENTAL COMPOSITION BASED ON CONDENSED SILANES

The present invention relates to novel polymerizable dental compositions comprising, (A) polysiloxanes, wherein the polysiloxanes comprise a mixture of the condensates of the three silanes (a1), (a2) and (a3) and/or a cocondensate of a mixture of the three silanes (a1), (a2) and (a3) and/or a mixture of at least two of the cocondensates (a1)/(a2), (a1)/(a3) and (a2)/(a3) and/or a mixture of the condensate of one of the three silanes (a1), (a2) or (a3) with the cocondensate of the other two silanes, (B) fillers and (C) initiators and/or catalysts and/or activators for the polymerization. 1. A polymerizable dental composition comprising:(A) polysiloxanes, wherein the polysiloxanes comprise i) a mixture of the condensates of silanes (a1), (a2) and (a3), ii) a cocondensate of a mixture of silanes (a1), (a2) and (a3), iii) a mixture of at least two of the cocondensates (a1)/(a2), (a1)/(a3) and (a2)/(a3), iv) a mixture of the condensate of one of the three silanes (a1), (a2) or (a3) with the cocondensate of the other two silanes, or v) combinations thereof,{'sup': 1', '2, 'sub': a', 'b', 'f', 'e', 'd', 'c, 'claim-text': [{'sub': x', 'x', 'x, 'Y═—(X)—C(═O)NH—, —NHC(═O)—(X)— and —(X)C(═O)N(—C(═O)NH—)—, —C(═O)NHC(═O)NH—, —NHC(═O)NHC(═O)—, wherein the bond arranged on the left in each formula is closer to the structural element A and the bond arranged to the right is closer to the structural element B,'}, 'PG=polymerizable group,', 'A=an organic linking group, connecting Si with Y and comprising 1 to 20 C-atoms,', 'B=an organic linking group, connecting Y with PG and comprising 1 to 20 C-atoms,', 'X═O, S, or NH,', {'sup': '1', 'R═H or C1- to C4-alkyl,'}, {'sup': '2', 'R═C1- to C4-alkyl,'}, 'a=2 or 3,', 'b=0 or 1,', 'c=1 or 2,', 'd=1 to 3,', 'e=1 or 2,', 'f=1 to 5,', 'a+b+c=4, and', 'x=0 or 1,, 'wherein silane (a1) has the formula (RO)RSi[-A(-Y{—B[—PG]})], wherein'}{'sup': 1', '2, 'sub': a', 'b', 'f', 'c, 'claim-text': PG=polymerizable group,', 'A′=an organic linking group, ...

Dental composition

The present invention relates to a dental composition comprising (i) a polymerizable composition containing a compound having repeating units of the following formula (I): wherein R 1 represents a hydrogen atom or a linear C 1-6 alkyl group, or a branched or cyclic C 3-6 alkyl group; L represents a divalent organic linker group which may contain one or more monovalent or divalent organopolysiloxane groups and/or one or more monovalent or divalent perfluorohydrocarbyl groups; n is an integer of at least 1; and (ii) one or more vinyl compounds selected from vinyl ethers, vinyl esters, vinylsiloxanes, (meth) acrylamides and 1-alkenes having from 4 to 20 carbon atoms, said vinyl compounds being copolymerizable with the compound having repeating units of formula (I); and (iii) a polymerization initiator system.

SHADE MATCHING DENTAL COMPOSITE

A dental composite or coating that comprises at least one photopolymerizable resin, at least one inorganic filler, a photoinitator, and at lease one interference platelet. The dental composite is able to adapt and match the color and shade of adjacent tooth structure in the cavity in which it is placed, without the need for conventional dyes and pigments, although it may be desirable to use dyes and pigments in a specific shade series. 1. A curable dental composition comprising a photocurable resin , at least one filler , a photoinitiator and at least one interference platelet to form a translucent composite that mimics the color of a surrounding cavity.2. The curable dental composition of claim 1 , wherein the contrast ratio of a disk of 1 mm thickness of the composite is between 40 and 85.3. The curable dental composition of claim 1 , wherein the contrast ratio of a disk of 1 mm thickness of the composite is between 55 and 75.4. The curable dental composition of claim 1 , wherein the difference between the refractive index of the filler and that of the photocurable resin after curing is not greater than 0.03.5. The curable dental composition of claim 1 , wherein the at least one interference platelet is reflective or scattering in the visible region of the spectrum.6. The curable dental composition of claim 1 , wherein the at least one interference platelet is reflective or scattering in the red and green region of the spectrum.7. The curable dental composition of claim 1 , wherein the at least one interference platelet is reflective or scattering in the red and yellow region of the spectrum.8. The curable dental composition of claim 1 , wherein the at least one interference platelet has a mean particle diameter between 5 and 100 microns.9. The curable dental composition of claim 1 , wherein the at least one interference platelet has a mean particle diameter between 5 and 50 microns.10. The curable dental composition of wherein the filler has a refractive index ...

DENTAL IMPLANT, COMPONENT FOR DENTAL APPLICATIONS, IMPLANT SYSTEM FOR DENTAL APPLICATIONS, METHOD FOR FORMING A PROTECTIVE LAYER ON THE SURFACE OF AN IMPLANTABLE OR IMPLANT COMPONENT, IMPLANTABLE OR IMPLANT COMPONENT HAVING A PROTECTIVE LAYER, AND USE OF A PROTECTIVE LAYER

The present invention provides Dental implant configured to be inserted into a hole in jaw bone and to be at least partially situated in bone tissue when implanted, comprising: a coronal implant region, the surface of which is at least partly covered by an oxide layer with an average thickness in the range from 60 nm to 170 nm and has an average arithmetical mean height Sa in the range from 0.1 μm to 1.0 μm. Further provided is a component for dental applications, preferably dental abutment, wherein the surface of the component is at least partly covered by an oxide layer with an average thickness in the range from 60 nm to 170 nm and has an average arithmetical mean height Sa in the range from 0.05 μm to 0.5 μm and an implant system comprising the dental implant and the component. Method for forming a protective layer on the surface of an implantable or implant component, the method comprising a) applying a solution on the surface of component, the solution having a pH at 25° C. of 6.8 or less and b) drying the solution applied in step a) to form a protective layer on the surface of the component for dental applications. Finally, part of the present invention is an implantable or implant component having a protective layer obtainable as above and a use of such layer for storage. 112.-. (canceled)13. Component for dental applications , wherein the surface of the component isat least partly covered by an oxide layer with an average thickness in the range from 60 nm to 170 nm andhas an average arithmetical mean height Sa in the range from 0.05 μm to 0.5 μm.14. Component according to claim 13 , wherein the surface of the component is at least partially obtained by performing an anodic oxidation process.15. Component according to claim 13 , wherein the surface of the component is smooth claim 13 , nanostructured claim 13 , basically non-porous and/or exhibits an as-machined structure.16. Component according to claim 13 , wherein the surface of the component exhibits a ...

PHOTOPOLYMERIZATION INITIATOR, PHOTOCURABLE COMPOSITION, CURED PRODUCT, AND DENTAL MATERIAL

A photopolymerization initiator including a peroxide, a photobase generator, and a photoradical generator; a photocurable composition; a cured product; and a dental material. 1. A photopolymerization initiator , comprising:a peroxide;a photobase generator; anda photoradical generator.2. The photopolymerization initiator according to claim 1 , wherein the photoradical generator is excited by light having a wavelength of from 420 nm to 525 nm.3. The photopolymerization initiator according to claim 1 , wherein the photoradical generator is a Norrish type II initiator claim 1 , or an aniline compound and an iodonium salt compound.4. The photopolymerization initiator according to claim 1 , wherein the peroxide comprises at least one selected from the group consisting of diacyl peroxide compounds claim 1 , peroxyester compounds claim 1 , hydroperoxide compounds claim 1 , inorganic peroxides claim 1 , and alkyl peroxides.5. The photopolymerization initiator according to claim 1 , wherein the photobase generator comprises at least one selected from the group consisting of oxime ester compounds claim 1 , acyl compounds claim 1 , carbamate compounds claim 1 , aminoacetophenone compounds claim 1 , tertiary amine compounds claim 1 , quaternary ammonium salt compounds claim 1 , and amide compounds.6. The photopolymerization initiator according to claim 1 , further comprising a benzodioxole compound.7. The photopolymerization initiator according to claim 1 , which is for a dental material.8. A photocurable composition claim 1 , comprising:{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'the photopolymerization initiator according to ; and'}a polymerizable monomer.9. The photocurable composition according to claim 8 , wherein a mass content ratio of the photoradical generator to a total amount of the polymerizable monomer is from 0.0001 to 1.0.10. The photocurable composition according to claim 8 , wherein a mass content ratio of the photobase generator to a total amount of the ...

A HARDENABLE MULTI-PART ACRYLIC COMPOSITION

A hardenable multi-part acrylic composition having at least two parts that react upon mixing to form a cement, such as bone cement, which hardens to a solid is described that includes storage stable liquid first and second parts, and optionally, further liquid parts. The parts react upon mixing to form a cement that hardens to a solid. The composition includes an acrylic monomer component and an initiator component in an amount effective to polymerize the acrylic monomer component when mixed and/or activated with it. The liquid first part comprises an aqueous dispersion of acrylic polymer particles and acrylic polymer beads. The polymer beads are at an equilibrium water content with the aqueous phase of the dispersion that generally has a viscosity between 10 and 10,000 centipoise. A twin barrelled syringe, caulking gun or other cement mixing and delivery device and a method of producing the composition are also described. 1. A hardenable multi-part acrylic composition including a storage stable liquid first part , a storage stable liquid second part and optionally , a third or further liquid parts , which react upon mixing to form a cement which hardens to a solid , the composition comprising an acrylic monomer component , an initiator component in an amount effective to polymerize the acrylic monomer component upon being mixed and/or activated therewith , wherein the liquid first part comprises an aqueous dispersion of acrylic polymer particles and acrylic polymer beads in the said dispersion , characterised in that the polymer beads in the dispersion are at an equilibrium water content with the aqueous phase of the dispersion.2. A hardenable multi-part acrylic composition including a liquid first part , a liquid second part and optionally , a third or further liquid parts , which react upon mixing to form a cement which hardens to a solid , the composition comprising an acrylic monomer component , an initiator component in an amount effective to polymerize the ...

Glass Fillers for Composites

The invention relates to a particulate glass filler wherein glass particles of 0.2 to 1 μm mean particle size are connected with other particles, the connection being effected by the glass material itself. More precisely particulate glass filler comprising glass particles, wherein the particles contains centrally located macro glass particles and on the outer surface located micro glass particles wherein the macro and micro glass particles are connected by the material of said particles. Further the invention relates to a method for manufacturing the glass particles and the particulate glass filler comprising said glass particles. It also relates to a composite or dental material comprising the above particulate glass filler.

ROOT CANAL FILLING COMPOSITION

The invention relates to a root canal filling composition for placement in a tooth root canal, a kit for providing the required materials, and a method for applying the materials. It is provided that the root canal filling composition comprises a glass-fibre post and a dentine-adhesive filling material. 1. A root canal filling composition for placement in a tooth root canal , comprising an elongate glass-fibre post with a first end and a second end , an apical stop , which is made of a physiological material and is arranged at the first end , and a filling material , which surrounds the glass-fibre post over its entire surface at least in some regions , characterised in that the filling material comprises a dentine-adhesive filling material.2. The root canal filling composition according to claim 1 , characterised in that the filling material comprises or consists of a composite claim 1 , in particular a dual-curing composite and/or a self-adhesive material.3. The root canal filling composition according to claim 1 , characterised in that the glass-fibre post is formed in one or more parts claim 1 , wherein in the case of a multi-part design a plurality of elongate parts which are not connected to one another in an integrally bonded manner and are arranged next to one another form the glass-fibre post and are detachably connected to one another in particular via a holder.4. The root canal filling composition according to claim 1 , characterised in that the apical stop comprises or consists of a physiological material claim 1 , in particular a bioresorbable material.5. The root canal filling composition according to claim 1 , characterised in that the apical stop comprises an alkyl cyanoacrylate claim 1 , in particular with an alkyl chain length in the range of Cto C.6. The root canal filling composition according to claim 1 , characterized in that the apical stop comprises an alginate claim 1 , a hyaluronic acid claim 1 , a collagen claim 1 , and/or a bone adhesive ...

Compositions and methods for adhesion to surfaces

The present disclosure features adhesive compositions and methods of use thereof related to the medical, veterinary, and dental fields.

Resin reinforced zinc polycarboxylate temporary cement compositions and related kits and methods

Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.

Process for Producing a Colored Dental Zirconia Article

The invention relates to a process of producing a dental zirconia article, the process comprising the step of sintering a porous dental zirconia article, the sintering comprising a heat-treatment segment A characterized by a heating rate of at least K/sec up to a temperature of at least 1,200° C., the porous dental zirconia article being composed of a zirconia material containing 6.0 to 8.0 wt. % yttria, 0.05 to 0.12 wt. % alumina and comprising a coloring component containing Tb, the porous dental zirconia article being essentially free of Fe components. The invention also relates to a process comprising the additional step of applying a glazing composition to the outer surface of the porous zirconia article before the heat-treatment or sintering is conducted.

PREPARATION OF SILICA-COATED CALCIUM CARBONATES WITH INCREASED SURFACE AREA AND MESOPOROSITY

This disclosure describes a process for preparing silica-coated calcium carbonate particles, involving the steps of preparing an aqueous carbonate slurry containing calcium carbonate particles, adding at least one silicate composition to the aqueous carbonate slurry to obtain a carbonate-silicate slurry, lowering a pH of the carbonate-silicate slurry by adding at least one acidic compound to obtain a pH-adjusted slurry containing the silica-coated calcium carbonate particles, and isolating the silica-coated calcium carbonate particles—in which at the adding of the acidic compound is controlled such that a final pH of the pH-adjusted slurry ranges from about 7 to about 10, and the silica-coated calcium carbonate particles include a porous coating having an average pore diameter ranging from 2 nm to 50 nm. This disclosure also describes articles and compositions containing the silica-coated calcium carbonate particles, as well as hollow silica spheres formed from the silica-coated calcium carbonate particles. 1. A process , comprising:preparing an aqueous carbonate slurry comprising calcium carbonate particles;adding at least one silicate composition to the aqueous carbonate slurry to obtain a carbonate-silicate slurry;lowering a pH of the carbonate-silicate slurry by adding at least one acidic compound to obtain a pH-adjusted slurry comprising silica-coated calcium carbonate particles; andisolating the silica-coated calcium carbonate particles,wherein:the silicate composition comprises a silica and a metal oxide;a molar ratio of the silica to the metal oxide in the silicate composition ranges from 1.1:1 to 5:1;the adding of the at least one acidic compound is controlled such that a final pH of the pH-adjusted slurry ranges from about 7 to about 10; andthe silica-coated calcium carbonate particles comprise a porous coating having an average pore diameter ranging from 2 nm to 50 nm.2. The process according to claim 1 , wherein the calcium carbonate particles are ...

DENTAL COMPOSITION

A dental composition may be suitable for use as a dental composite resin or other dental material, have good ease of handling, and be highly stable in consistency and low in polymerization shrinkage stress while providing desirable mechanical strength and polishability for the cured product. A dental composition may include a polymerizable monomer (A), an inorganic filler (B), a prepolymer (C), and a polymerization initiator (D), the inorganic filler (B) having an average particle diameter of 1 to 20 μm, and a specific surface area of 10 to 300 m/g. The prepolymer (C) preferably has a structure derived from the polyfunctional monomer (a). The polyfunctional monomer (a) has a molecular weight of preferably 250 to 1,000. 1. A dental composition comprising a polymerizable monomer (A) , an inorganic filler (B) , a prepolymer (C) , and a polymerization initiator (D) , the inorganic filler (B) having an average particle diameter of 1 to 20 and a specific surface area of 10 to 300 m/g.2. The dental composition according to claim 1 , wherein the prepolymer (C) comprises a structure derived from a polyfunctional monomer (a).3. The dental composition according to claim 2 , wherein the polyfunctional monomer (a) has a molecular weight of 250 to 1 claim 2 ,000.4. The dental composition of claim 2 , wherein the polyfunctional monomer (a) comprises at least one selected from the group consisting of a polyfunctional (meth)acrylic acid ester and a polyfunctional (meth)acrylamide.5. The dental composition of claim 2 , wherein the polyfunctional monomer (a) comprises a compound represented by the following general formula (1):{'br': None, 'X-A-X\u2003\u2003(1),'}where X is a (meth)acryloyloxy group or a (meth)acrylamide group, and A is an optionally substituted divalent aliphatic hydrocarbon group having 5 or more carbon atoms, or an optionally substituted divalent aromatic hydrocarbon group having 6 or more carbon atoms, wherein some of the constituent carbon atoms in A may be ...

Process for the production of antimicrobial dental adhesives including graphene and relative product thereof

Disclosed is a dental adhesive including a polymeric adhesive and a nanofiller dispersed in the polymeric adhesive, the nanofiller being constituted by graphene nanostructures which are properly dispersed inside the polymer adhesive and over the surface of the adhesive layer without formation of agglomerates, so that the dental adhesive exhibits significant antimicrobial and antibiofilm properties against pathogens of the oral cavity.

Primer and kit of primer and dental material

The invention relates to an aqueous dental single-component primer composition as well as a kit with this primer composition and a composite. The primer composition according to the present invention is self-etching and self-undercoating. It comprises a polymerizable (meth)acrylate or (meth)acrylamide monomer with (i) at least one acidic group such as for example a phosphoric acid group and with (ii) at least one hydrophilic group such as for example a terminal hydroxy group or two polymerizable (meth)acrylate or (meth)acrylamide monomers, wherein one thereof comprises (i) at least one acidic group and one thereof comprises (ii) at least one hydrophilic group. In addition, at least one of the polymerizable (meth)acrylate or methylacrylamide monomers comprises (i) a polyfunctionality, preferably an at least threefold polyfunctionality, particularly preferably a 3-, 4-, 5-, 6-, 7-, 8-, 9- or 10-fold polyfunctionality and/or (ii), or a further polymerizable (meth)acrylate or methylacrylamide monomer (iii) with a polyfunctionality, preferably an at least three-fold polyfunctionality, particularly preferably a 3-, 4-, 5-, 6-, 7-, 8-, 9- or 10-fold polyfunctionality is contained. This polyfunctionality inheres in the capability to polymerize. In particularly, at least three, preferably terminal, (meth)acrylate, (meth)acrylamide and/or allyl groups are present. Furthermore, this primer composition is characterized by the absence of a photoinitiator, a polymerization catalyst, in particularly a polymerization catalyst on the basis of vanadium as well as by the absence of an organic solvent.

SILANE COUPLING COMPOUNDS AND MEDICAL AND/OR DENTAL CURABLE COMPOSITIONS COMPRISING THE SAME

The present invention relate to a novel silane coupling agent and a medical and/or dental curable composition comprising the same. It is an object of the present invention to provide a novel silane coupling agent that imparts high affinity to a radical polymerizable monomer, thereby imparting high mechanical strength, flexibility and durability when used for a medical and/or dental curable composition, and an inorganic filler surface-treated with the novel silane coupling agent and a novel medical and/or dental curable composition. A silane coupling agent including repeating units such as a urethane bond and polyethylene glycol (ether bond) at a specific position is used. 17-. (canceled)8. A silane coupling agent having:a polymerizable group,a reactive silyl group, anda spacer group connecting the polymerizable group and the reactive silyl group, [ {'br': None, 'sup': 1', '3, '—Z—NH—C(O)OR—\u2003\u2003Formula (I)'}, 'Spacer group I, {'sup': 1', '3', 'n', 'n, 'sub': 2', '2', '3', '2', '2', '3', '2', '6', '6', '4', '2', '2', '3', '2', '2', '3, 'wherein, Zis a C2-C30 linear or branched saturated aliphatic hydrocarbon group, and has at least one or more of —CH—CH—O—, —O—CH(CH)—CH— and —O—CH—CH(CH)— groups, and Ris a C7-C30 linear or branched alkylene group, and may have one or more of —S—, —NH—, —NR— wherein Rrepresents an alkylene group, —CH—CH— wherein CHrepresents a phenylene group, —C(O)—O—, —O—, —CH—CH—O—, —O—CH(CH)—CH— and —O—CH—CH(CH)— groups.'}], 'wherein the spacer group is the following spacer group I10. The silane coupling agent according to claim 8 , which is synthesized using a compound having any one of the following structures (2-(2-isocyanatoethoxy)ethyl methacrylate or 2-(2-isocyanatoethoxy)ethyl acrylate):{'br': None, 'sub': 2', '3', '2', '2', '2', '2, 'CH═C(CH)—C(O)—O—CH—CH—O—CH—CH—NCO'}{'br': None, 'sub': 2', '2', '2', '2', '2, 'CH═CH—C(O)—O—CH—CH—O—CH—CH—NCO.'}11. An inorganic filler which is surface-treated with the silane coupling agent according ...

Compositions And Methods For Bioactive Dental Composites

Described herein are compositions and methods which produce hydrolytically stable resin monomers, bioactive fillers, phosphorus coupling agent and surface coating method, which can be combined to produce new generation dental composites; compositions comprising the same, as well as methods of making and using the same are also described.

Resin reinforced zinc polycarboxylate temporary cement compositions and related kits and methods

Dental cement compositions (including two-part compositions), kits, and related methods are used for bonding a dental prosthetic appliance to a tooth. A first part includes an amine activator component and a zinc oxide reactive filler, while a second part includes a polymerization initiator (e.g., benzoyl peroxide) and a polymerizable component having a structure including at least one acrylate or methacrylate group at one end and a carboxylic acid group at another end. A temporary cement composition advantageously exhibits reduced compressive and/or bonding strength relative to permanent cement compositions, which provides sufficient strength to facilitate normal use of the teeth while the provisional appliance is in use, while also facilitating easy removal of the provisional appliance for replacement with a permanent appliance at a later time.

DENTAL COMPOSITION

Dental composition comprising 2. The dental composition according to claim 1 , wherein at least two of A claim 1 , A claim 1 , and Arepresent CH.3. The dental composition according to claim 1 , wherein at least five of X claim 1 , X claim 1 , X claim 1 , Y claim 1 , Y claim 1 , and Yrepresent CH.4. The dental composition according to claim 1 , wherein n is 1.6. The dental composition according to claim 1 , wherein A claim 1 , A claim 1 , and A claim 1 , represent CH claim 1 , and X claim 1 , X claim 1 , X claim 1 , Y claim 1 , Y claim 1 , and Yrepresent CH.7. The dental composition according to claim 1 , wherein n is 0.8. The dental composition according to claim 7 , wherein Ris a flourine atom claim 7 , a hydroxyl group claim 7 , an amino group claim 7 , a Calkyl group claim 7 , or a Calkoxy group.9. The dental composition according to claim 7 , wherein Ris a flourine atom claim 7 , a hydroxyl group claim 7 , an amino group claim 7 , a Calkyl group claim 7 , or a Calkoxy group.12. The dental composition according to claim 1 , which further comprises a radio-opaque particulate filler.13. The dental composition according to claim 1 , which is a root canal filling composition or a pulp capping composition.14. The dental composition according to claim 1 , which has a gel time of at most 20 hours. The present invention relates to a dental composition comprising a specific primary amine compound. A dental composition in accordance with the invention is adapted to form epoxide-amine addition polymers. Furthermore, the present invention relates to a specific primary amine compound for use in the treatment or prevention of endodontic disease.Polymerizabie dental compositions containing polymerizable compounds are known. Conventionally, poiymerizable dental compositions are provided for a broad range of applications and must, therefore, meet diverse requirements. For example, a polymerizable dental composition may be a dental adhesive composition, a bonding agent, a pit and ...

DENTAL ADHESIVE

The present invention relates to an aqueous dental composition having a pH of at most 7. Furthermore, the present invention relates to the use of a specific composition for the preparation of an aqueous dental composition. 2. The aqueous dental composition according to claim 1 , wherein B is a group according to the definition of A.3. The aqueous dental composition according to or claim 1 , wherein Xin formula (II) is CO.4. The aqueous dental composition according to claim 1 , wherein Xin formula (VI) is CO.5. The aqueous dental composition according to claim 1 , wherein L is —CHCH═CHCH—.6. The aqueous dental composition according to claim 1 , comprising a polymerizable phosphoric acid ester as a polymerizable monomer having one or more acidic groups.7. The aqueous dental composition according to claim 1 , which further comprises a polymerizable monomer having at least three polymerizable double bonds.9. The aqueous dental composition according to claim 1 , wherein the organic solvent of the solvent mixture is selected from the group consisting of ethanol claim 1 , n-propanol claim 1 , iso-propanol claim 1 , n-butanol claim 1 , iso-butanol claim 1 , sec-butanol claim 1 , tert-butanol claim 1 , acetone and methyl ethyl ketone.10. The aqueous dental composition according to claim 1 , wherein the solvent mixture comprises at least 1 percent by weight based on the total weight of the composition claim 1 , of water.11. The aqueous dental composition according to claim 1 , which further comprises a particulate filler.12. The aqueous dental composition according to claim 1 , which is selected from a dental adhesive composition claim 1 , a dental bonding agent claim 1 , a dental primer claim 1 , a dental infiltrant claim 1 , a pit and fissure sealant claim 1 , a dental desensitizing composition claim 1 , a pulp capping composition claim 1 , a dental composite claim 1 , dental glass ionomer cement claim 1 , a dental cement claim 1 , a seal and protecting composition for ...

Dental photopolymerizable composition for 3d printer

To provide a dental photopolymerizable composition which can prepare a dental restoration with excellent aesthetic and mechanical properties by optical three-dimensional modeling method (stereolithography). The dental photopolymerizable composition for 3D printer of the present disclosure comprises: a (a) (meth)acrylate-based polymerizable monomer consisting of a (a1) (meth)acrylate-based polymerizable monomer containing a urethane structure and a (a2) (meth)acrylate-based polymerizable monomer not containing a urethane structure, a (b) cohesive inorganic filler, and a (c) photopolymerization initiator, wherein; a ratio of the (a1) (meth)acrylate-based polymerizable monomer containing a urethane structure and the (a2) (meth)acrylate-based polymerizable monomer not containing a urethane structure in the (a) (meth)acrylate-based polymerizable monomer is 51:80 to 49:20 pts.wt., a ratio of the (a) (meth)acrylate-based polymerizable monomer and the (b) cohesive inorganic filler is 50:91 to 50:9 pts.wt., and the dental photopolymerizable composition for 3D printer contains 0.1 to 5 pts.wt. of the (c) photopolymerization initiator based on 100 pts.wt. of the (a) (meth)acrylate-based polymerizable monomer.

Dispersions of nanoscale dental glass particles and methods for preparing the same

Provided are a dispersion of a nanoparticulate mixed oxide of SiO 2 with at least one further metal oxide in a matrix monomer, methods for preparing such a dispersion, a dental composite producible by curing such a dispersion, and uses of the dispersion as a precursor for dental composites.

Dental Mill Blank of a Porous Zirconia Material Containing Oxides of Tb, Er and Cr, Process of Producing and Use Thereof

The present invention relates to a dental zirconia mill blank comprising a porous zirconia material, the porous zirconia material comprising Zr oxide, Y oxide, optionally Al oxide, Bi oxide, Tb oxide, Er oxide, Cr oxide, the porous zirconia material not comprising Fe oxide calculated as FeOof more than 0.01 wt. %, Mn oxide calculated as MnOof more than 0.005 wt. %, Co oxide calculated as CoOof more than 0.005 wt. %, wt. % with respect to the weight of the porous zirconia material. The invention also relates to a process of producing such a dental zirconia mill blank and a dental restoration which can be machined from the dental zirconia mill blank. Further, the invention relates to a kit of parts comprising such a dental zirconia mill blank and a dental cement. 1. A process of producing a dental mill blank comprising a porous zirconia material ,the porous zirconia material comprising Zr oxide, Y oxide, optionally Al oxide, Bi oxide, Tb oxide, Er oxide, and Cr oxide, [{'sub': 2', '3, 'Fe oxide calculated as FeOof more than 0.01 wt. %,'}, {'sub': '2', 'Mn oxide calculated as MnOmore than 0.005 wt. %,'}, {'sub': 2', '3, 'Co oxide calculated as CoOof more than 0.005 wt. %,'}], 'the porous zirconia material not comprising'}wt. % with respect to the weight of the porous zirconia material providing a zirconia powder comprising Tb oxide,', 'providing a zirconia powder comprising Er oxide,', 'providing a zirconia powder comprising Cr oxide,', 'providing a zirconia powder comprising Bi oxide,', 'providing a zirconia powder not comprising oxides of Tb, Er, Cr and Bi,', 'mixing and/or layering the zirconia powders described above,', 'compacting the layered and/or mixed zirconia powders,', 'optionally applying a heat-treatment step,, 'the process comprising the steps of'}the zirconia powders comprising Zr oxide, Y oxide and optionally Al oxide, none of the zirconia powders or the dental mill blank comprising Fe oxide in an amount of more than 0.01 wt. %, Mn and Co oxides each in ...

Material for demineralizing dentin collagen fibril, preparation method and application thereof

The invention relates to a dentin collagen fibril demineralizing material, and a preparation method and application thereof. The invention relates to a conjugate of water-soluble chitosan and an aminocarboxylic acid metal chelating agent used for dental demineralization, preferably dentin demineralization. The invention also discloses a dentin collagen fibril demineralizing material and a preparation method and application thereof, wherein the material is prepared from 0.5-1 part by mass of water-soluble chitosan, 10-30 parts by mass of EDTA, and 0.8-1.5 parts by mass of cross-linking agent. The invention relates to a dental demineralization composition comprising a conjugate and a material of the invention. The conjugate, material and composition can be used for dentin demineralization treatment before dental bonding and restoration. When used as a dentin collagen demineralizing agent, they have excellent selective extrafibrillar demineralization performance, good biological compatibility, effective anti-bacterial activity, endogenous matrix protease-inhibiting activity and extremely low cytotoxicity.

Curable composition

Provided is a curable composition comprising a polymerizable monomer (A); spherical particles (B) having an average primary-particle diameter in a range of 230 nm to 1,000 nm; and a polymerization initiator (C), in which 90% or more of individual particles constituting the spherical particles (B) lies in a range of ±5% based on the average primary-particle diameter, and the refractive index of the spherical particles (B) is larger than the refractive index of a polymer of the polymerizable monomer (A). When a 1 mm-thick cured product is formed from the curable composition and the Y value (Yb) of the colored light of the cured product on a black background and the Y value (Yw) of the colored light of the cured product on a white background are each measured using a color difference meter, the ratio therebetween, Yb/Yw, being within a range of 0.2 to 0.5.

WOUND HEALING PROMOTER

A pharmaceutical preparation efficaciously promotes tissue wound repair. The wound repair promoter according to the present invention includes at least one active ingredient selected from the group consisting of compounds represented by Formula (1), salts of the compounds, and hydrates of the compounds or the salts. In the formula, Rand Rare each, identically or differently, selected from hydrogen and a hydrocarbon group optionally having one or more substituents selected from the group consisting of halogens, —COOR, —CONR, —COR, —CN, —NO, —NHCOR, —OR, —SR, —OCOR, —SOR, and —SONR, where Ris, identically or differently in each occurrence, selected from hydrogen and an optionally substituted aliphatic hydrocarbon group; and n represents an integer of 1 or more. 2. The wound repair promoter according to claim 1 ,which is a mucosal wound repair promoter.3. The wound repair promoter according to claim 1 ,which is a wound repair promoter for a tissue including a fibroblast.4. The wound repair promoter according to claim 1 ,which is a pharmaceutical preparation for preventing or treating a periodontal disease.6. The wound repair promoter according to claim 1 ,which is an ocular-mucosal wound repair promoter. The present invention relates to pharmaceutical preparations effective for promoting repair of tissue wounds. This application claims priority to Japanese Patent Application No. 2017-081239, filed Apr. 17, 2017 in Japan, the entire contents of which are incorporated herein by reference.In an aging society, how to curb growth in medical spending is a great issue for the national finance. As a solution to solve the issue, preemptive medicine, which is a medical care to reduce or delay the onset of diseases, is needed more and more.For example, a “periodontal disease” is a generic name for various pathoses caused by lipopolysaccharides (LPSs) in periodontal tissues (tissues that surround and support each tooth), where LPSs constitute the outer membranes of periodontal ...

Organic-inorganic composite filler, and method for producing the same

An organic-inorganic composite filler contains: inorganic aggregate particles formed by aggregation of inorganic primary particles with an average particle diameter of 10 to 1000 nm; an organic resin phase including a cured polymer of a polymerizable monomer covering surfaces of the inorganic primary particles and bonding the inorganic primary particles to each other, and a water absorbing resin; and aggregation gaps with a volume of micropores formed between parts of the organic resin phase of 0.01 to 0.30 cm 3 /g in pore volume measurement within a pore diameter range of 1 to 500 nm, as measured by a mercury intrusion technique. In a cross section passing through the centers of the inorganic aggregate particles, based on 100 measured inorganic particles, there are 10 or less inorganic aggregate particles having a macro void with a maximum width of at least 1 μm.

STABILIZED STANNOUS COMPOSITIONS

The present invention relates to improved complexes of amorphous calcium phosphate and/or amorphous calcium fluoride phosphate stabilised by phosphopeptides/phosphoproteins by addition of stannous ions. These complexes have anticariogenic properties useful to protect tooth structures as they remineralize (repair) early stages of dental caries and have other dental/medical applications (including anti-calculus, anti-erosion/corrosion and anti-dentinal hypersensitivity). Methods of making the complexes of the invention and of treatment or prevention of various dental conditions including dental caries, dental calculus, dental erosion/corrosion and dental hypersensitivity are also provided. 129-. (canceled)30. A method of mineralizing a dental surface or subsurface , comprising contacting the dental surface or subsurface with a compound capable of increasing or maintaining the pH of a solution and a stannous-associated stabilized amorphous calcium phosphate (ACP) and/or amorphous calcium fluoride phosphate (ACFP) complex having at least 1 mole of stannous per mole of phosphopeptide.31. The method according to claim 30 , wherein the compound capable of increasing or maintaining the pH of a solution is a base.32. The method according to claim 30 , wherein the dental surface is a lesion in enamel caused by caries claim 30 , dental erosion claim 30 , or fluorosis.33. The method according to claim 30 , wherein the ACP and/or ACFP is phosphopeptide-stabilized.34. The method according to claim 30 , wherein the complex has a stannous ion content of at least 5 moles of stannous per mole of phosphopeptide.35. The method according to claim 30 , wherein the complex has a stannous ion content of about 7 moles of stannous per mole of phosphopeptide.36. The method according to claim 30 , wherein the stannous of the complex is provided by a stannous compound selected from the group consisting of stannous fluoride claim 30 , stannous chloride claim 30 , potassium stannous fluoride ...

Dental compositions comprising mixture of isocyanurate monomer and tricyclodecane monomer

Hardenable compositions are described comprising at least one multifunctional ethylenically unsaturated isocyanurate monomer and at least one multifunctional ethylenically unsaturated tricyclodecane monomer. In favored embodiments, the compositions further comprise filler and are suitable dental restorations.

CURABLE COMPOSITION FOR DENTAL USE, AND METHOD FOR PRODUCING SAME

Provided is a method for producing a dental curable composition, the method includes mixing a polymerizable monomer (A); a spherical filler (B) having an average primary particle diameter within a range of 230 nm to 290 nm; a spherical filler (C) having an average primary particle diameter within a range of 100 nm to 500 nm, the spherical filler having an average primary particle diameter different from that of the spherical filler (B); and a polymerization initiator (D), in which 90% or more in number of the individual particles constituting the spherical filler (B) and the spherical filler (C) are present in a range of ±5% from the average primary particle diameter, and the refractive indices of the spherical filler (B) and the spherical filler (C) are larger than the refractive index of a polymer of a polymerizable monomer (A). 1. A method for producing a dental curable composition , the method comprising mixing a polymerizable monomer (A); a spherical filler (B) having an average primary particle diameter within a range of 230 nm to 290 nm; a spherical filler (C) having an average primary particle diameter within a range of 100 nm to 500 nm , the spherical filler (C) having the average primary particle diameter different from that of the spherical filler (B); and a polymerization initiator (D) , wherein90% or more in number of [[the]] individual particles constituting the spherical filler (B) and the spherical filler (C) are present in a range of ±5% from the average primary particle diameter, and {'br': None, 'sub': 'B', 'nP Подробнее

DENTAL PHOTOCURABLE COMPOSITION EXCELLENT IN COLOR TONE SELECTIVITY

[Problem] 1. A dental photocurable composition , comprising (A) polymerizable monomer , (B) photosensitizer , (C) photoacid generator , (D) photopolymerization accelerator and (E) filler , wherein ,the dental photocurable composition comprises (B-1) α-diketone compound as the (B) photosensitizer, and 0.15 parts by mass or less of the (B-1) α-diketone compound,', '0.5 parts by mass or more of the (C) photoacid generator, and', '100 parts by mass or more of the (E) filler., 'the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer,'}2. The dental photocurable composition according to claim 1 , whereinthe (B-1) α-diketone compound is a camphorquinone compound.3. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises an aryl iodonium salt as the (C) photoacid generator, whereinthe aryl iodonium salt is a salt of an anion having an organic group and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation.4. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises an aryl iodonium salt as the (C) photoacid generator, whereinthe aryl iodonium salt is a salt of an anion having an organic group in which at least one H is substituted with F and one or more atoms of P, B, Al, S and Ga, and an aryl iodonium cation.5. The dental photocurable composition according to claim 1 , whereinthe dental photocurable composition comprises (D-1) aliphatic tertiary amine compound not having two or more primary hydroxy groups as (D) photopolymerization accelerator.6. The dental photocurable composition according to claim 1 , wherein 1 parts by mass or more of the (C) photoacid generator, and', '0.5 parts by mass or more of the (D) photopolymerization accelerator., 'the dental photocurable composition comprises, with respect to 100 parts by mass of the (A) polymerizable monomer,'}7. The dental photocurable ...

PHOTOPOLYMERIZABLE RESIN COMPOSITIONS FOR DURABLE DENTAL PROSTHETIC AND RESTORATIVE ARTICLES

The present invention relates to photopolymerizable resin compositions suitable for producing durable dental prosthetic and restorative articles. In particular, the invention relates to photopolymerizable resin compositions comprised of a specific combination of multiple polymerizable components, one or more resin-modifying particle components, and one or more photopolymerization initiator components. Compositions of the invention are especially well-suited to producing durable, stain-and wear-resistant dental prosthetic and restorative articles, such as artificial teeth, crowns, bridges, inlays, onlays, and veneers, in an efficient and reliable manner using additive manufacturing systems and methods (e.g., three-dimensional (D) printing). 2. The composition of claim 1 , wherein the one or more third polymerizable acrylic compounds is the reaction product of a diisocyanate end-capped pre-oligomer intermediate compound with one or more hydroxyalkyl(meth)acrylate compounds.3. The composition of claim 2 , wherein the diisocyanate end-capped pre-oligomer intermediate compound is the reaction product of trimethyl-1 claim 2 ,6-diisocyanatohexane with bisphenol A propoxylate.4. The composition of claim 1 , wherein the weight ratio of first polymerizable acrylic compound(s) (AC) to third polymerizable acrylic compound(s) (AC) claim 1 , AC:AC claim 1 , is within the range of about 5:1 to about 20:1.5. The composition of claim 1 , wherein the composition comprises no more than about 75% by weight of the one or more first polymerizable acrylic compounds.6. The composition of claim 1 , wherein the composition comprises no more than about 45% by weight of the one or more second polymerizable acrylic compounds.7. The composition of claim 1 , wherein the composition comprises no more than about 20% by weight of the one or more third polymerizable acrylic compounds.8. The composition of claim 1 , wherein the composition comprises no more than about 18% by weight of the one or more ...

TWO-PASTE DENTAL CURABLE COMPOSITION

The present invention provides a two-paste dental curable composition achieving clinically acceptable bond durability to dental adherends including dental glass ceramic restorations (particularly lithium disilicate-containing glass ceramic restorations) without using conventionally used primers. The present invention relates to a two-paste dental curable composition comprising: a first agent comprising a polymerizable monomer (a) having an acid group, a polymerizable monomer (b) having no acid group, a polymerization initiator (c), and a filler (d); and a second agent comprising a polymerizable monomer (b) having no acid group, at least one filler (e) selected from the group consisting of a basic glass filler and alumina, a polymerization accelerator (f), and a silane coupling agent (g) represented by the following general formula [I]: 2. The two-paste dental curable composition according to claim 1 , wherein Ris a divalent aliphatic group optionally having a divalent group and having a linear chain having a carbon chain length of 7 or more or a divalent aromatic group optionally having a divalent group and having 7 or more carbon atoms.3. The two-paste dental curable composition according to claim 1 , wherein{'sup': 2', '3', '4, 'R, R, and Rare each independently a hydroxy group, an alkyl group having 1 to 3 carbon atoms, or an alkoxy group having 1 to 3 carbon atoms and'}{'sup': 2', '3', '4, 'at least one of R, R, and Ris an alkoxy group having 1 to 3 carbon atoms.'}4. The two-paste dental curable composition according to claim 1 , wherein{'sup': 2', '3', '4, 'R, R, and Rare each independently a hydroxy group, a methyl group, or a methoxy group and'}{'sup': 2', '3', '4, 'at least one of R, R, and Ris a methoxy group.'}5. The two-paste dental curable composition according to claim 1 , wherein R claim 1 , R claim 1 , and Rare each a methoxy group.6. The two-paste dental curable composition according to claim 1 , wherein Ris a divalent aliphatic group optionally ...

DENTAL MOLDED ARTICLE AND DENTAL RESIN MATERIAL

A dental molded article has a predetermined shape so as to be used in an oral cavity, and contains polycaprolactone, acrylic resin, powdery silica, ascorbic acid, titanium oxide, a pigment, and zinc stearate. The acrylic resin is set to have a weight ratio of 5 to 30%, the powdery silica is set to have a weight ratio of 5 to 25%, the ascorbic acid is set to have a weight ratio of 0.3 to 1.8%, the titanium oxide is set to have a weight ratio of 0.001 to 0.02%, the pigment is set to have a weight ratio of 0.001 to 0.1%, and the zinc stearate is set to have a weight ratio of 0.001 to 0.1%, with respect to the polycaprolactone. Thus, a dental molded article and a dental resin material that can easily fit a mucosal surface in an oral cavity of a patient, are provided. 1. A dental molded article that has a predetermined shape , that is used in an oral cavity , and that contains polycaprolactone , the dental molded article comprising:acrylic resin made of a polymer of acrylic acid ester, a polymer of methacrylic acid ester, or a copolymer of acrylic acid ester and methacrylic acid ester, the acrylic resin having a weight ratio of 5 to 30% with respect to the polycaprolactone;powdery silica having a weight ratio of 5 to 25% with respect to the polycaprolactone;ascorbic acid having a weight ratio of 0.3 to 1.8% with respect to the polycaprolactone;titanium oxide having a weight ratio of 0.001 to 0.02% with respect to the polycaprolactone;a pigment having a weight ratio of 0.001 to 0.1% with respect to the polycaprolactone;zinc stearate having a weight ratio of 0.001 to 0.1% with respect to the polycaprolactone; anda remainder being the polycaprolactone and unavoidable impurities.2. (canceled)3. A dental molded article that has a predetermined shape , that is used in an oral cavity , and that contains polycaprolactone , the dental molded article comprising:thermoplastic polyester resin having a weight ratio of 5 to 30% with respect to the polycaprolactone;powdery silica ...

DENTAL GLASS IONOMER CEMENT COMPOSITION

To provide a dental glass ionomer cement composition which exhibits high mechanical properties. The dental glass ionomer cement composition of the present disclosure comprises 1. A dental glass ionomer cement composition , comprising(a) non-crosslinked polyalkenoic acid,(b) water,(c) crosslinked polyalkenoic acid: 0.01 to 10 wt. %,and(d) acid-reactive glass powder.2. The dental glass ionomer cement composition of claim 1 , wherein the (c) crosslinked polyalkenoic acid is a crosslinked polyacrylic acid.3. The dental glass ionomer cement composition of claim 1 , wherein(a) non-crosslinked polyalkenoic acid: 5 to 20 wt. %,(b) water: 10 to 25 wt. %,(c) crosslinked polyalkenoic acid: 0.01 to 10 wt. %,and(d) acid-reactive glass powder: 60 to 80 wt. %.4. The dental glass ionomer cement composition of claim 2 , wherein(a) non-crosslinked polyalkenoic acid: 5 to 20 wt. %,(b) water: 10 to 25 wt. %,(c) crosslinked polyalkenoic acid: 0.01 to 10 wt. %,and(d) acid-reactive glass powder: 60 to 80 wt. %. This application is based on and claims the benefit of priority from Japanese Patent Application Serial No. 2019-175362 (filed on Sep. 26, 2019), the contents of which are hereby incorporated by reference in their entirety.The present disclosure relates to a dental glass ionomer cement. More specifically, the present disclosure relates a dental glass ionomer cement for filling or a dental glass ionomer cement for luting which exhibit high mechanical property.In a dental practice, in order to restore aesthetically and functionally the tooth in which a form was partially lost by caries, breakages and the like, a direct restorative in which a dental glass ionomer cement for filling is filled into the tooth and an indirect restorative in which a dental prosthesis device is adhered or bonded to a tooth by using a dental glass ionomer cement for luting has been performed.The dental glass ionomer cement represented by the dental glass ionomer cement for filling and the dental glass ...

TOOTH-SURFACE-MEMBRANE-FORMING POWDER CONTAINING SINTERED APATITE

In order to provide a film-forming powder using hydroxyapatite which is a main component of teeth, or hydroxyapatite in which a color tone adjuster is blended, the powder being used in a jet-device for forming a film on a surface of a tooth by spraying the powder on the tooth, and being suitable for forming a film having a high hardness and extremely low solubility in acid in a short period of time, and suitable for forming a film of a powder conforming to the color tone of a tooth in a short period of time; a hydroxyapatite powder calcined in an inert gas atmosphere at 600 to 1350° C., a powder obtained by applying to the hydroxyapatite powder calcined at 600 to 1350° C. plasma irradiation, or plasma irradiation and mechanical energy, and additionally a film-forming powders obtained by blending color tone adjusters into these hydroxyapatite powders are produced. 1. A method for producing a film-forming powder for forming a film on a surface of a tooth for use in a jet-device for a tooth , the powder having a mean particle size of 0.5 to 30 μm , comprising calcining an apatite represented by Ca.M(ZO)Y(wherein X represents 0 to 10; M represents a metal or hydrogen; ZOrepresents PO , CO , CrO , AsO , VO , SiO , SOor GeO; and Y represents a hydroxyl group , a halogen element or a carbonate group) is fired at 600 to 1350° C. , and then performing grinding and classification , and thereafter performing plasma irradiation.2. The method for producing a film-forming powder according to claim 1 , wherein the apatite is hydroxyapatite.3. The method for producing a film-forming powder according to claim 1 , wherein the film-forming powder is calcined in an inert gas atmosphere at 600 to 1350° C.4. The method for producing a film-forming powder according to claim 3 , wherein the inert gas is argon gas or nitrogen gas.5. The method for producing a film-forming powder according to claim 1 , comprising further blending a color tone adjuster for adjusting a color tone of a tooth ...

DENTAL MILLING BLANK FOR THE PRODUCTION OF PERMANENT INDIRECT RESTORATIONS AND COMPUTER-AIDED PROCESS FOR PRODUCING THE PERMANENT INDIRECT RESTORATIONS

A dental milling blank for the production of permanent indirect restorations in the CAD/CAM process, characterized in that it has a water sorption WSP of less than/equal to 18 μg/mm, measured according to ISO 4049 and an E modulus E greater than/equal to 13 GPa, measured according to the ADA specification No. 27 and a quotient Q of WSP/E of less than 1.35 μg/(GPa×mm) and consists of the polymerization product of a radically curable dental composition, which comprises 1. A dental milling blank for the production of permanent indirect restorations in the CAD/CAM process , said dental milling blank having a water sorption WSP of less than or equal to 18 μg/mm3 , measured according to ISO 4049 and an E modulus E greater than or equal to 13 GPa , measured according to the ADA specification No. 27 and a quotient Q of WSP/E of less than 1.35 μg/(GPa×mm3) and consists of the polymerization product of a radically curable dental composition , which comprises a1) a glass composition and', 'a2) non-aggregated and non-agglomerated silicic acid with an average particle size of not more than 80 nm,, 'a) inorganic fillers, wherein the total mass of the inorganic fillers is at least 83 wt. %, based on the total mass of the composition, wherein the inorganic fillers a) comprise'}b) radically polymerizable monomers,c) one or more initiators for radically curing andwherein the glass composition a1) does not comprise ground, densified, embrittled glass fibers after a heating procedure.2. The dental milling blank for the production of permanent indirect restorations in the CAD/CAM process as claimed in claim 1 , characterized in that it has a water sorption WSP of less than/equal to 15 μg/mm claim 1 , measured according to ISO 4049 and an E modulus E greater than/equal to 15 GPa claim 1 , measured according to the ADA specification No. 27 and a quotient Q of WSP/E of less than 1μg/(GPa×mm) and consists of the polymerization product of a radically curable dental composition claim 1 , ...

Dental Compositions

A dental composition is provided as a coating comprising glass flakes providing improved wear-5 resistance and aesthetic properties. The compositions may be used in the treatment of dentine hypersensitivity, dental caries, or in the protection of a tooth from the external environment of the mouth. 1. A dental composition comprising glass flakes and a resin wherein the glass flakes and resin have a refractive index difference of less than 0.04.2. A dental composition according to wherein the glass flakes have a thickness in the range of between 0.5 and 10 microns and an aspect ratio in the range of between 14:1 and 90:1.3. A dental composition according to wherein the aspect ratio is in the range of between 20:1 and 40:1.4. A dental composition according to wherein the weight fraction of the glass flakes is between 5% and 70%.5. A dental composition according to wherein the weight fraction of the glass flakes is between 20% and 40%.6. A dental composition as claimed in wherein the flakes are coated with a silane.7. A dental composition according to wherein the resin is a methacrylate resin.8. A dental composition according to wherein the resin is a dimethacrylate resin.9. A dental composition according to wherein the resin comprises a hydrophilic monomer.10. A dental composition according to further comprising a photoinitiator system.11. A dental composition according to wherein the photoinitiator system can be cured by the application of light within one minute.12. A dental composition according to further comprising a carboxylic acid or phosphate functional monomer.13. A dental composition according to further comprising a fluoride releasing agent.14. A dental composition according to wherein upon application of the composition to a tooth surface the glass flakes align substantially parallel to the surface.15. A dental composition according to for treating or preventing dentine hypersensitivity.16. A dental composition according to for treating or preventing caries ...

DISRUPTION OR ALTERATION OF MICROBIOLOGICAL FILMS

A method for altering and/or disrupting a microbiological film is described. The method comprises introducing a composition into a microbiological film, the composition comprising nano- or microparticles having an electron density that can couple with a photon wave of electromagnetic radiation. The method also comprises irradiating said microbiological film by said electromagnetic radiation such as to form a vapour bubbles using said nano- or microparticles in said microbiological biofilm, thereby generating a mechanical force for locally altering and/or disrupting said microbiological film when said vapour bubbles expand and/or collapse. 115.-. (canceled)16. A method for disrupting and/or altering a microbiological film , the method comprising:introducing a composition into a microbiological film, the composition comprising nano- or microparticles having an electron density that can couple with a photon wave of electromagnetic radiation; andirradiating said microbiological film by said electromagnetic radiation such as to form vapour bubbles using said nano- or microparticles in said microbiological film, thereby generating a mechanical force for locally altering or disrupting said microbiological film as the consequence of the expansion and/or collapse of said vapour bubbles.17. The method according to claim 16 , wherein irradiating said microbiological film by said pulse of electromagnetic radiation comprises irradiating the microbiological film by a pulsed irradiation source claim 16 , said pulse of electromagnetic radiation having a pulse length in the range of 10 ns down to 10 fs.18. The method according to claim 16 , wherein said microbiological film is any group of microorganisms in which cells stick to each other and cells adhere to a surface.19. The method according to claim 18 , wherein locally altering or disrupting said microbiological film comprises disrupting the film such that cells become loosened from each other and/or from the surface.20. The ...

Dental adhesive

The present invention relates to an aqueous dental composition having a pH of at most 7. Furthermore, the present invention relates to the use of a specific composition for the preparation of an aqueous dental composition.

CURABLE COMPOSITION FOR PRODUCING A DENTAL COMPOSITE CROWN AND PROCESS OF PRODUCTION

The invention relates to A curable composition for producing dental composite crowns, the composition comprising a resin matrix comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, polymerizable urethane(meth)acrylate(s), wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety are used in excess over the polymerizable urethane(meth)acrylate(s), a filler matrix comprising nanocluster(s), fumed silica in an amount below 8 wt. % with respect to the weight of the whole composition, an initiator system comprising photoinitiator(s), organic dye(s), the curable composition not comprising softener in an amount of more than 5 wt. % with respect to the weight of the whole composition, the curable composition having a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s. The invention also relates to a cured article obtained by radiation curing this curable composition by use of an additive-manufacturing method. 1. A curable composition for producing dental composite crowns , the composition comprising polymerizable (meth)acrylate(s) not comprising a urethane moiety, and', 'polymerizable urethane(meth)acrylate(s),', 'wherein the polymerizable (meth)acrylate(s) not comprising an urethane moiety is in excess with respect to the polymerizable urethane(meth)acrylate(s),, 'a resin matrix comprising nanocluster(s),', 'optionally fumed silica in an amount below 8 wt. %,', 'wherein the filler matrix being present in an amount of 5 to 45 wt. %,, 'a filler matrix comprising photoinitiator(s), and', 'organic dye(s);, 'an initiator system comprisinga softener in an amount of no greater than 5 wt. %,{'sup': '−1', 'wherein the curable composition is characterized by a viscosity below 150 Pa*s at 23° C. and a shear rate of 1 s, and'}wherein wt. % is with respect to the weight of the curable composition.2. The curable composition of claim 1 ,the resin matrix being present in an amount of 40 to 85 wt. %,the initiator system being present in ...

(METH)ACRYLATE, MONOMER COMPOSITION FOR DENTAL MATERIAL, MOLDED BODY, COMPOSITION FOR DENTAL MATERIAL, DENTAL MATERIAL, AND METHOD OF MANUFACTURING (METH)ACRYLATE

A (meth)acrylate includes a reaction product of a thiol compound containing two or more thiol groups, and a (meth)acrylate compound containing two or more (meth)acryloyloxy groups. 1. A (meth)acrylate comprising a reaction product of a thiol compound containing two or more thiol groups , and a (meth)acrylate compound containing two or more (meth)acryloyloxy groups.2. The (meth)acrylate according to claim 1 , wherein the reaction product comprises a structure formed by reacting the thiol groups contained in the thiol compound and the (meth)acryloyloxy groups contained in the (meth)acrylate compound claim 1 , and wherein the reaction product does not contain a thiol group claim 1 , and contains a (meth)acryloyloxy group.5. The (meth)acrylate according to claim 4 , wherein a molecular weight of the Ris from 100 to 500 in the general formula (1).7. The (meth)acrylate according to claim 4 , wherein claim 4 , in general formula (1) claim 4 , the di(meth)acrylate is neopentyl di(meth)acrylate claim 4 , 1 claim 4 ,4-butanediol di(meth)acrylate claim 4 , 1 claim 4 ,6-hexanediol di(meth)acrylate claim 4 , 1 claim 4 ,8-octanediol di(meth)acrylate claim 4 , 1 claim 4 ,9-nonanediol di(meth)acrylate claim 4 , 1 claim 4 ,10-decanediol di(meth)acrylate claim 4 , tricyclodecanedimethanol di(meth)acrylate claim 4 , ethylene glycol di(meth)acrylate claim 4 , diethylene glycol di(meth)acrylate claim 4 , triethylene glycol di(meth)acrylate claim 4 , tetraethylene glycol di(meth)acrylate claim 4 , polyethylene glycol di(meth)acrylate claim 4 , tripropylene glycol di(meth)acrylate claim 4 , tetrapropylene glycol di(meth)acrylate claim 4 , polypropylene glycol di(meth)acrylate claim 4 , 2 claim 4 ,2-bis[4-(3-(meth)acryloyloxy-2-hydroxypropoxy)phenyl]propane claim 4 , ethylene oxide-modified bisphenol A di(meth)acrylate claim 4 , or propylene oxide-modified bisphenol A di(meth)acrylate.8. The (meth)acrylate according to claim 1 , having a viscosity at 25° C. of from 1 mPa·s to 10 claim 1 , ...

Allyl disulfide-containing addition-fragmentation oligomers

A Addition-fragmentation oligomers containing allylic disulfide groups are described. The oligomers may be added to polymerizable compositions to provide labile crosslinks that can cleave and reform during the polymerization process.

Two-paste type sealer composition for root canal filling

To provide a two-paste type sealer composition for root canal filling consisting of a first paste containing a polymer (a) of an acid group-containing polymerizable monomer in which a portion or the entirety of the acidic group in a molecule forms a salt with an alkaline metal, a non-acid reactive powder (b) and water (c), wherein the pH of the first paste is in the range from 3.5 to 5.5, and a second paste containing an acid reactive inorganic powder (d), water (c) and a thickener (e), wherein, a cured product of a kneaded material of the first paste and the second paste comprises 3 to 20 part by weight of the polymer (a), 15 to 60 part by weight of the water (c), and 30 to 70 part by weight of the acid reactive inorganic powder (d).

Combined material including anodic porous alumina and a polymer matrix, and its use for the dental recondition

The present invention relates to anodic porous alumina (APA) in the form of microparticles, characterized in that it contains interconnected through nanopores, and to its use in the preparation of a new composite material, which is useful for example in the field of conservative dentistry. The invention further relates to a process for preparing the nanoporous alumina of the invention in microparticles.

POROUS COMPOSITE FILLER COMPOSITIONS

A composite filler comprising thermally processed porous inorganic mixed particles of silica and at least one heteroparticle selected from the group consisting of zirconia, hafnia, or yttria and a polymer occupying the pores of the porous inorganic mixed particles, wherein the porous inorganic mixed particles are thermally processed at a temperature of from 650 to 900° C., as well as a dental restorative comprising a resin and a composite filler, and optionally other fillers, wherein said resin has a refractive index that increases upon curing, and wherein the opacities of the both uncured and cured restorative are less than 45. 121.-. (canceled)22. A composite composition comprising: inorganic mixed particles of silica and zirconia, thermally processed and containing pores; and', 'a polymer occupying the pores of the thermally processed inorganic mixed particles of silica and zirconia; and, 'a filler comprising'}a resin;wherein the composite composition exhibits an average gloss retention after 1 hour of abrasion of at least 61.9 gloss units.23. The composite composition of claim 22 , wherein the silica particles of the filler have a median primary particle diameter of less than 100 nm.24. The composite composition of claim 22 , wherein:the silica particles of the filler are chosen from a mixture comprising silica colloids of a first type and a second type;the first type of the silica colloids has a median primary particle diameter of 20 nm and is present in the mixture at a concentration of at least 20 weight percent; andthe second type of the silica colloids has a median primary particle diameter of 80 nm and is present in the mixture at a concentration of at least 20 weight percent.25. The composite composition of claim 22 , wherein the polymer occupying the pores of the thermally processed inorganic mixed particles of silica and zirconia is present in the filler at a weight percent from 8 to 16.26. The composite composition of claim 22 , wherein the zirconia ...

Bioactive coated gutta-percha as root canal filling matter

The present invention relates to the deposition of a micro-crystalline hydroxyapatite and tricalcium phosphate coating onto gutta-percha cones, to be used as dental composite for root canal filling. The method proposed for coating involves the surface pretreatment of gutta-percha cones with sodium hydroxide; immersion of gutta-percha cones in simulated body fluid, which contains calcium and phosphate ions; and replacing consumed simulated body fluid after an interval of time, at physiological pH and temperature. The nucleation process results in the biomimetic deposition of a thin and uniform layer of calcium phosphates and hydroxyapatite. Improved characteristics such as in sealing ability, bonding strength, and ability to form hermetic seal, therefore allows the dental composite produced, to be used appropriately as filling matter in root canal treatments.

METHODS AND COMPOSITIONS FOR SOFT ANTICHOLINERGIC ESTERS

Intra-oral formulations comprising soft anticholinergic alkyl esters are useful for treating excessive drooling conditions in subjects, such as humans, suffering from sialorrhea. Preferably, at least one soft anticholinergic ester is provided in an effective amount or concentration in an anhydrous intra-oral formulation that can inhibit excessive drooling resulting from a condition known as sialorrhea. 2. The method according to claim 1 , wherein the compound of formula (2) is selected from the group consisting of:(iii) (2R) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(methoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(iv) (2R) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(ethoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(v) (2R,3′R) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(methoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(vi) (2R,3′S) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(methoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(vii) (2R,3′R) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(ethoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(viii) (2R,3′S) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(ethoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(ix) (2R,1′R,3′S) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(ethoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(x) (2R,1′S,3′S) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(ethoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(xi) (2R,1′R,3′R) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(ethoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(xii) (2R,1′S,3′R) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(ethoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(xiii) (2R,1′R,3′S) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(methoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(xiv) (2R,1′S,3′S) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(methoxycarbonylmethyl)-1-methylpyrrolidinium bromide;(xv) (2R,1′R,3′R) 3-(2-cyclopentyl-2-phenyl-2-hydroxyacetoxy)-1-(methoxycarbonylmethyl)-1- ...

A dental composition

A dental composition comprising 10-50 wt-% of a methacrylate-based first matrix component, a polymerisation system and as a second matrix component 1-50 wt-% of a compound having a general formula (I). 2. The dental composition according to claim 1 , wherein the amount of the first matrix component is 30-50 wt-%.3. The dental composition according to claim 1 , wherein the amount of the second matrix component is 3-35 wt-%.4. The dental composition according to claim 1 , further comprising 10-45 wt-% of a methacrylate-based third matrix component different from the first matrix component.5. The dental composition according to claim 1 , wherein the first matrix component and the optional third matrix component are independently selected from a group consisting of methyl methacrylate claim 1 , ethyl methacrylate claim 1 , n-butyl methacrylate claim 1 , isobutyl methacrylate claim 1 , 2-ethylhexyl methacrylate claim 1 , 2-hydroxyethyl methacrylate claim 1 , cyclohexyl methacrylate claim 1 , isobornyl methacrylate claim 1 , tetrahydrofurfuryl methacrylate claim 1 , benzyl methacrylate claim 1 , methacryloyloxydecyl dihydrogen phosphate claim 1 , morpholinoethyl methacrylate claim 1 , acrylic acid claim 1 , diethylene glycol dimethacrylate claim 1 , triethylene glycol dimethacrylate claim 1 , diurethane dimethacrylate and 2 claim 1 ,2-bis(4-(2-hydroxy-3-methacryloxy)phenyl)-propane claim 1 , and mixtures thereof.6. The dental composition according to claim 1 , further comprising a filler material.7. The dental composition according to claim 6 , wherein the filler material is selected from the group consisting of glass ionomer fillers claim 6 , colour pigments claim 6 , inert ceramics claim 6 , hydroxyl apatite claim 6 , AlO claim 6 , ZrO claim 6 , silver claim 6 , zerogels claim 6 , bioactive glasses claim 6 , radio-opaque materials claim 6 , and mixtures thereof.8. The dental composition according to claim 1 , further comprising a fibre reinforcing material.9. The dental ...

GLAZING COMPOSITION FOR A DENTAL ZIRCONIA ARTICLE, PROCESS OF SINTERING AND KIT OF PARTS

The invention relates to a glazing composition suitable for glazing the surface a dental zirconia article. The glazing composition comprises a liquid, glass particles, and hydrophilic silica nano-particles. The invention also relates to a process for sintering a porous dental zirconia article with a glazing composition on its surface. 1. A glazing composition for a porous dental zirconia article , the glazing composition comprisingliquid,glass particles, andhydrophilic silica nano-particles.2. The glazing composition according to claim 1 , the ratio of hydrophilic silica nano-particles to glass particles being in a range of 1:40 to 1:5 with respect to weight.3. The glazing composition according to claim 1 , the liquid being a polar liquid selected from water claim 1 , alcohols claim 1 , polyols and mixtures thereof.8. The glazing composition according to claim 1 , being characterized by the following features alone or in combination:viscosity: 10 to 3,000 mPa*s at 23° C.;pH value: 6 to 9.9. The glazing composition according to claim 1 , comprisingliquid selected from water, alcohol, polyols and mixtures thereof in an amount of 60 to 95 wt. %, [{'sub': '50', 'the glass particles having a particle size (D) of 1 to 40 μm,'}, {'sup': 4', '7, 'the glass of the glass particles having a viscosity of 10to 10Pa*s at 1,300° C.,'}], 'glass particles in an amount of 4 to 40 wt. %,'}hydrophilic silica nano-particles in an amount of 0.1 to 5 wt. %,wt. % with respect to the weight of the whole glazing composition.10. A process of producing a dental zirconia article claim 1 , the process comprising the steps ofproviding a porous dental zirconia article,{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'applying the glazing composition of to at least a part of the surface of the porous dental zirconia article,'}sintering the porous dental zirconia article with the glazing composition on its surface to final density.11. The process according to claim 10 , the porous dental zirconia ...

DENTAL COMPOSITE MATERIAL AND MILL BLANKS CONSISTING OF SAID COMPOSITE MATERIAL

A polymerisable dental composite material comprising 1. A polymerisable dental composite material , comprising{'sub': '50', '(i) 70 to 85% by weight of an inorganic filler component comprising at least one dental glass having an average particle size dof 0.7 to 7.5 μm, as well as optionally at least one amorphous metal oxide,'}(ii) 10 to 30% by weight of a mixture of at least two different urethane (meth)acrylates, wherein the mixture comprises at least one difunctional urethane (meth)acrylate having a bivalent alicyclic group comprising bis-(4′,7′-dioxa-3′,8′-dioxo-2′-aza-decyl-9′-en)tetrahydrodicyclopentadiene, bis-(4′,7′-dioxa-3′,8′-dioxo-2′-aza-9′-methyl-decyl-9′-en)tetrahydrodicyclopentadiene and/or mixtures thereof, as well as optionally mixtures of the 3,8- / 3,9- / 4,8- / 3,10- / 4,10 isomers and/or of the cis isomers and trans isomers of the afore-mentioned compounds,(iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (meth)acrylate,(iv) 0.01 to 10% by weight of at least one initiator, of an initiator system, as well as optionally of at least one stabilizer and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight.2. The dental composite material according to claim 1 , wherein{'sub': '50', 'a) the dental glass has an average particle size dof 1.5 μm, or'}{'sub': 50', '50', '50, 'b) the dental glass comprises a mixture of dental glasses of different fractions having an average particle size, with dof 2 to 8 μm, ii) dof 1.0 to 2.0 μm, and iii) dof 0.5 μm to 1.2 μm, wherein the fractions of i) to ii) to iii) are present in the ratio of 1 to 4:1:4 to 8.'}3. The dental composite material according to claim 1 , wherein the amorphous metal oxide comprises at least one non-agglomerated amorphous metal oxide having a primary particle size of 2 to 45 nm claim 1 , and the amorphous metal oxide optionally comprises precipitated silicon dioxide claim ...

DENTAL COMPOSITE MATERIAL WITH ADAPTED RATIO OF FLEXURAL STRENGTH TO ELASTIC MODULUS, AND MILL BLANKS MADE OF SAID COMPOSITE MATERIAL

A polymerisable dental composite material comprising 1. A polymerisable dental composite material , comprising(i) 60 to 85% by weight of an inorganic filler component comprising at least one tectosilicate,(ii) 10 to 40% by weight of a mixture of at least two different urethane(meth)acrylates,(iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane(meth)acrylate,(iv) 0.01 to 10% by weight of at least one initiator, of an initiator system, as well as optionally of at least one stabiliser and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight.2. The dental composite material according to claim 1 , wherein the tectosilicate has an average particle size dof 0.7 to 3.0 μm.3. The dental composite material according to claim 1 , wherein the inorganic filler component comprises at least one tectosilicate claim 1 , as well as optionally at least one dental glass and/or at least one amorphous metal oxide.4. The dental composite material according to claim 1 , wherein the tectosilicate comprises a feldspar or a feldspar mixture.5. The dental composite material according to claim 1 , wherein (ii) comprises a mixture of at least two different urethane(meth)acrylates claim 1 , wherein the mixture comprises at least one difunctional urethane(meth)acrylate having a bivalent alicyclic group and a difunctional urethane(meth)acrylate having a bivalent alkylene group claim 1 , and optionally at least one at least tetrafunctional dendritic urethane(meth)acrylate.6. The dental composite material according to claim 1 , wherein (ii) is selected from di-methacrylic esters of polyethers claim 1 , tri- claim 1 , tetra- or multi-functional methacrylic esters of polyethers.7. The dental composite material according to claim 1 , wherein the at least one stabiliser comprises water claim 1 , at least one benzophenone derivative and/or at least one phenol derivative.8. The dental ...

Dental Materials Based On Redox Systems With Low-Odour Cumene Hydroperoxide Derivatives

Radically polymerizable dental material, which contains a combination of a thiourea derivative and a hydroperoxide according to the following Formula (I) as initiator system for the radical polymerization: 2. Dental material according to claim 1 , in which the variables have the following meanings:{'sup': 1', '1', '1, 'sub': 1', '14', '1', '10, 'Qan n-valent, aromatic, aliphatic, linear or branched C-Chydrocarbon radical, which can be interrupted by one or more S and/or O atoms and which can be unsubstituted or substituted by one or more substituents which are selected from —OH, —OR, —Cl and —Br, wherein Ris an aliphatic, linear or branched C-Chydrocarbon radical,'}{'sup': 2', '3', '2', '3, 'X, Y independently of each other are in each case absent, —O—, —COO—; —CONR—, or —O—CO—NR—, wherein Rand Rindependently of each other represent H, methyl and/or ethyl, and wherein X and Y are not absent at the same time,'}{'sup': 2', '4', '4, 'sub': 1', '14', '1', '10, 'Qis absent with, an aliphatic, linear or branched C-Calkylene radical, which can be interrupted by S and/or O atoms and which can be unsubstituted or substituted by —OH, —OR, —Cl and/or —Br, wherein Ris an aliphatic, linear or branched C-Chydrocarbon radical,'}{'sup': '3', 'sub': '2', 'claim-text': {'sup': '2', 'wherein X and/or Y is absent if Qis absent,'}, 'Q—CH— or is absent'}n 1, 2, 3 or 4, and whereinthe substitution on the aromatic compound takes place in position 2, 3 or 4.3. Dental material according to claim 1 , in which the variables have the following meanings:{'sup': 1', '1', '1, 'sub': 1', '10', '1', '6, 'Qa mono- or divalent, aliphatic, linear or branched C-Chydrocarbon radical, which can be interrupted by one or more O atoms, and which can be substituted by one or more substituents which are selected from —OH and —OR, or is unsubstituted, wherein Ris an aliphatic, linear or branched C-Chydrocarbon radical,'}{'sup': 3', '3, 'sub': 1', '5, 'X, Y independently of each other are in each case absent, —O ...

Dental Materials With Improved Setting Behaviour

Radically polymerizable dental material, which contains a combination of a thiourea derivative, a hydroperoxide and at least one peroxide as initiator system for the radical polymerization. 1. Radically polymerizable dental material comprising a combination of a thiourea derivative and a hydroperoxide as initiator system for the radical polymerization , characterized in that it additionally contains at least one peroxide.2. Dental material according to claim 1 , comprising a compound of the formula R—(OOH) claim 1 , in which R is an aliphatic or aromatic hydrocarbon radical and n is 1 or 2 claim 1 , as hydroperoxide.3. Dental material according to claim 2 , comprising t-amyl hydroperoxide claim 2 , 1 claim 2 ,1 claim 2 ,3 claim 2 ,3-tetramethylbutyl hydroperoxide claim 2 , t-butyl hydroperoxide claim 2 , t-hexyl peroxide claim 2 , 2 claim 2 ,5-dimethyl-2 claim 2 ,5-di(hydroperoxy)hexane claim 2 , diisopropylbenzene monohydroperoxide claim 2 , paramenthane hydroperoxide claim 2 , p-isopropylcumene hydroperoxide claim 2 , cumene hydroperoxide (CHP) claim 2 , or a mixture thereof claim 2 , as hydroperoxide.4. Dental material according to claim 1 , comprising α claim 1 ,α-bis(t-butylperoxy)diisopropylbenzene claim 1 , dicumene peroxide claim 1 , 2 claim 1 ,5-dimethyl-2 claim 1 ,5-bis(t-butylperoxy)hexane claim 1 , t-butyl cumyl peroxide claim 1 , di-t-butyl peroxide claim 1 , 2 claim 1 ,5-dimethyl-2 claim 1 ,5-bis(t-butylperoxy)hexyne-3 or a mixture thereof as peroxide.5. Dental material according to claim 1 , comprising a diacyl peroxide as peroxide.6. Dental material according to claim 5 , wherein the diacyl peroxide comprises isobutyryl peroxide claim 5 , 2 claim 5 ,4-dichlorobenzoyl peroxide claim 5 , 3 claim 5 ,5 claim 5 ,5-trimethylhexanoyl peroxide claim 5 , octanoyl peroxide claim 5 , lauroyl peroxide claim 5 , stearyl peroxide claim 5 , succinic acid peroxide claim 5 , m-toluoyl benzoyl peroxide claim 5 , benzoyl peroxide (DBPO) claim 5 , or a mixture thereof.7 ...

Composition with excellent storage stability using highly basic filler

To provides a polymerizable composition having high storage stability and high color stability. To provide a two-paste type dental polymerizable composition of the present invention is a two-paste type dental polymerizable composition comprising a first paste containing (A) at least one kind of polemerizable monomer, an (B) organic peroxide as a chemical polymerization initiator, and a (C) basic filler, and a second paste containing (A) at least one kind of polemerizable monomer, a (C) basic filler and an (D) aromatic amine compound as a chemical polymerization accelerator, wherein the second paste contains 30 to 80 parts by weight of the (C) basic filler based on 100 parts by weight of the total amount of the second paste.

Multi-part dental cement

The present invention provides a dental cement showing excellent storage stability, undergoing little change in paste properties during long-term storage, and having a small solidification risk during long-term storage. The present invention relates to a multi-part dental cement comprising: a first paste comprising an acid group-containing (meth)acrylic polymerizable monomer (a), a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, an oxidizing agent (c-1) of a chemical polymerization initiator, and a filler (d); and a second paste comprising a polyfunctional (meth)acrylic polymerizable monomer (b) containing no acid group, a reducing agent (c-2) of a chemical polymerization initiator, and a filler (e), wherein the filler (d) is treated with a surface treatment agent and has an average particle diameter of 0.01 to 50.0 μm, the surface treatment agent comprises a silane coupling agent (A) represented by the general formula (1) and an organosilazane (B) represented by the general formula (2).

DENTAL COMPOSITE

The present application describes fib-reinforced dental composites (FRCs), processes for producing and uses of, the fibre-reinforced dental composites. More particularly, the fibre-reinforced dental composites described herein comprise a polymerisable resin and from about 0.5% to about 25% w/w of fibres having a diameter of from about 3 μm to about 9 μm and a length of from about 60 μm to about 2 mm. 1. A dental composite comprising:a polymerisable resin; andfrom about 0.5% to about 25% w/w of fibres having a diameter of from about 3 μm to about 9 μm and a length of from about 60 μm to about 2 mm.2. The dental composite according to claim 1 , wherein one or more of the following applies:i) the diameter of the fibres is from about 3 μm to about 6 μm;ii) a mean fibre diameter is about 5 μm;iii) the length of the fibres is from about 60 μm to about 750 μm;iv) the fibres have an aspect ratio (AR) of from about 20 to about 200;v) the fibres comprise two or more populations of fibres, wherein a mean aspect ratio (AR) of one population of fibres is different to the mean aspect ratio (AR) of at least one other population of fibres;vi) more than 80% w/w of the fibres have a length of from about 200 μm to about 500 μm; andvii) the fibres constitute from about 1% to about 10% w/w of the dental composite.3. (canceled)4. (canceled)5. (canceled)6. The dental composite according to claim 2 , wherein the aspect ratio (AR) of the fibres is from about 30 to about 100.7. (canceled)8. The dental composite according to claim 2 , wherein the mean aspect ratio (AR) of one population of fibres is from about 20 to about 100 claim 2 , and the mean aspect ratio (AR) of the at least one other population of fibres is from about 70 to about 200.9. (canceled)10. (canceled)11. The dental composite according to claim 2 , wherein the fibres constitute about 5% w/w of the dental composite.12. The dental composite according to claim 1 , wherein the fibres are composed of glass.13. The dental composite ...

Preparation method for dental material with transmittance and color gradients and product prepared thereby

Disclosed are a dental material with transmittance and color gradients and a method of preparing the dental material. The method includes (1) preparing at least three types of composite resin material precursor powders; (2) sequentially adding the precursor powders into a mold and performing dry pressing to obtain a preform body; alternatively, (2′) dry pressing the first type of precursor powder into a first green body, wrapping the first green body with the second type of precursor powder and then performing dry pressing to obtain a second green body, and repeating the wrapping and dry pressing operations until all types of precursor powder are dry pressed to obtain a preform body; and (3) performing hot-pressing consolidation on the preform body to obtain the desired dental material.

Method and device for functionalising dental restorations

In a functionalization method for use in dentistry, and a method for same, the application device includes a support for receiving a partially processed shaped dental part for producing a dental restoration, and a dispensing device for the at least partial infiltration of a functionalization material onto the surface of the shaped dental part.

Compression molded tooth

The compression molded tooth used for practicing dental cutting treatment of the present invention comprises a composition containing a powder or powders of saccharide, polysaccharide, protein, and/or glycoprotein each having a particle size of 1 to 100 μm.

Dental composition

The present invention relates to a dental composition comprising a specific polymerization initiator system comprising a compound having an acylsilyl- or acylgermanyl-group. The present invention also relates the use of the compound having an acylsilyl- or acylgermanyl group for the preparation of a dental composition.

DENTAL COMPOSITE MATERIAL AND MILL BLANKS CONSISTING OF SAID COMPOSITE MATERIAL

A polymerisable dental composite material comprising 1. A polymerisable dental composite material , comprising(i) 60 to 85% by weight of an inorganic filler component comprising at least one dental glass, as well as optionally at least one amorphous metal oxide,(ii) 10 to 40% by weight of at least one monomer comprising 1,3-bis(5′-alkyl-3′,8′-dioxo-2′-aza-4′,7′-dioxa-decyl-9′-en)phenyl and/or 1,3-bis(5′,9′-dialkyl-3′,8′-dioxo-2′-aza-4′,7′-dioxa-9′l-decyl-9′-en)phenyl, wherein the alkyl groups, each independently, are selected from C1 to C4 alkyl groups,(iii) 0.01 to 5% by weight of at least one di-, tri-, tetra- or multi-functional monomer not being a urethane (meth)acrylate, comprising bis(methacryloyloxymethyl)tetrahydrocyclopentadiene, bis(acryloyloxymethyl)tetrahydrodicyclopentadiene, and optionally in a mixture with a di-, tri-, tetra- or multi-functional monomer not being a urethane (meth)acrylate,(iv) 0.01 to 10% by weight of at least one initiator, of an initiator system, as well as optionally of at least one stabilizer and optionally of at least one pigment, wherein the total composition of the composite material amounts to 100% by weight.3. The dental composite material according to claim 1 , wherein the dental glass has an average particle size dof 0.1 to 1.0 μm.4. The dental composite material according to claim 1 , wherein the amorphous metal oxide comprises at least one non-agglomerated amorphous metal oxide having a primary particle size of 2 to 45 nm claim 1 , and the amorphous metal oxide optionally comprises precipitated silicon oxide claim 1 , zirconium oxide or mixed oxides.5. The dental composite material according to claim 1 , wherein the composite material comprises as(i) inorganic filler component(i.1) 70 to 84% by weight of at least one dental glass, and optionally(i.2) 1 to 15% by weight amorphous metal oxide, based on the total composition.6. The dental composite material according to claim 1 , wherein (ii) comprises a mixture of at least ...

Compound reinforced with glass or quartz fiber and light curing liquid resin, method for the reconstruction of teeth and method of application for the compound

SUMMARY OF THE INVENTION The present invention relates to a compound for medical and dental use made from glass or quartz fiber and light curing liquid resin; the design of dental structures in the mouth and outside the mouth using said compound; and the presentation of the compound as a treatment method.

Method of preventing or treating oral infections using zirconia autopolymerizable resins

A method of preventing or treating an oral disease by reducing adhesion of microorganisms, e.g. Candida albicans, to dental appliances fabricated and/or repaired by an autopolymerizing acrylic reinforcement resin comprising zirconium dioxide nanoparticles.

Dental materials and methods

The present application is directed to a dental material and a method of using the dental material. The dental material can include a hardenable resin; an initiator system; a filler; and from about 1 wt % to about 20 wt % zinc compound, based on the weight of the hardenable resin. The contrast ratio of the cured dental material increases by at least about 10 units after continuous exposure to an aqueous solution for 21 days

Dental Compositions

A dental composition is provided as a coating comprising glass flakes providing improved wear-5 resistance and aesthetic properties. The compositions may be used in the treatment of dentine hypersensitivity, dental caries, or in the protection of a tooth from the external environment of the mouth. 1. A dental composition comprising glass flakes and a resin wherein the glass flakes and resin have a refractive index difference of less than 0.04 , wherein the glass flakes have a thickness in the range of between 0.5 and 10 microns and an aspect ratio in the range of between 14:1 and 90:1 , and wherein the glass flakes are coated with a silane.2. (canceled)3. A dental composition according to wherein the aspect ratio is in the range of between 20:1 and 40:1.4. A dental composition according to wherein the weight fraction of the glass flakes is between 5% and 70% of the total weight of the composition.5. A dental composition according to wherein the weight fraction of the glass flakes is between 20% and 40% of the total weight of the composition.6. (canceled)7. A dental composition according to wherein the resin is a methacrylate resin.8. A dental composition according to wherein the resin is a dimethacrylate resin.9. A dental composition according to wherein the resin comprises a hydrophilic monomer.10. A dental composition according to further comprising a photoinitiator system.11. A dental composition according to wherein the photoinitiator system can be cured by the application of light within one minute.12. A dental composition according to further comprising a carboxylic acid or phosphate functional monomer.13. A dental composition according to further comprising a fluoride releasing agent.14. A dental composition according to wherein upon application of the composition to a tooth surface the glass flakes align substantially parallel to the surface.1517-. (canceled)18. A method of treating or preventing dentine hypersensitivity comprising administration of a dental ...

DENTAL COMPOSITION

The present invention relates to a dental composition comprising 2. The dental composition according to claim 1 , wherein the acidic polymerizable compound of formula (I) is a glycoside.3. The dental composition according to claim 1 , wherein X is a phosphate group bonded directly or through a methylene group to the cyclic moiety.4. The dental composition according to claim 1 , wherein Y is an amide group bonded directly or through a methylene group to the cyclic moiety.5. The dental composition according to claim 1 , wherein Z is an oxygen atom.6. The dental composition according to claim 1 , wherein L is a divalent Chydrocarbon containing one or more heteroatoms selected from the group of an oxygen atom claim 1 , a sulfur atom claim 1 , and a nitrogen atom.7. The dental composition according to claim 1 , wherein Rrepresents a hydrogen atom or an allyl group.9. The dental composition according to claim 1 , wherein at least one of the following features is present:a) the acidic polymerizable compound of the following formula (Ia), (Ib) or (Ic) is a crosslinker,{'sub': '2-6', 'b) L is an alkylene(polyoxyalkylene) group or a Calkenylene group,'}c) the initiator system is a photoinitiator system, a redox initiator system or a dual cure initiator system, andd) the dental composition is a dental adhesive composition, a bonding agent, a pit and fissure sealant, a dental desensitizing composition, a pulp capping composition, a dental composite, a flowable dental composite, a dental glass ionomer cement, a dental cement, resin modified glass ionomers, or a dental root canal sealer composition.10. The dental composition according to claim 8 , wherein the process for preparing the acidic polymerizable compound of formula (Ia) claim 8 , (Ib) or (Ic) is carried out as a one-pot process.11. (canceled)12. (canceled)13. The dental composition according to claim 2 , wherein the glycoside is a glucoside claim 2 , a fructoside claim 2 , a glucuronide claim 2 , a mannoside claim 2 , a ...

(METH)ACRYLATE, MONOMER COMPOSITION, DENTAL MATERIAL OBTAINED FROM COMPOSITION, AND PRODUCTION METHOD THEREOF

Provided are a monomer which can provide a cured product having both high toughness and rigidity, a monomer composition containing the monomer, the monomer composition used as a dental material monomer composition, a dental material composition containing the monomer composition or the dental material monomer composition, a cured product thereof having excellent mechanical properties, a dental material formed by curing the dental material composition, a method for producing the monomer composition, and a method for producing the dental material. A (meth)acrylate (D) is a reaction product of an amine compound (A) having two or more amino groups, an iso(thio)cyanate compound (B) having two or more iso(thio)cyanato groups, and a hydroxy (meth)acrylate compound (C) having one or more polymerizable groups. 1. A (meth)acrylate (D) which is a reaction product of:an amine compound (A) having two or more amino groups;an iso(thio)cyanate compound (B) having two or more iso(thio)cyanato groups; anda hydroxy (meth)acrylate compound (C) having one or more polymerizable groups.6. The (meth)acrylate (D) according to claim 4 , wherein Rhas an average molecular weight of 300 to 2000.8. The (meth)acrylate (D) according to claim 3 , wherein each Ris independently a Clinear alkylene group or a Clinear oxyalkylene group in which a hydrogen atom may be substituted with a Calkyl group.10. The (meth)acrylate (D) according to claim 1 , wherein a ratio (a/b) of a number of moles of the amino groups of the amine compound (A) claim 1 , a claim 1 , to a number of moles of the iso(thio)cyanato groups of the iso(thio)cyanate compound (B) claim 1 , b claim 1 , is 0.01 to 0.20.11. The (meth)acrylate (D) according to claim 9 , wherein the iso(thio)cyanate compound (B) is at least one selected from the group consisting of hexamethylene diisocyanate claim 9 , 2 claim 9 ,2 claim 9 ,4-trimethylhexane diisocyanate claim 9 , 2 claim 9 ,4 claim 9 ,4-trimethylhexamethylene diisocyanate claim 9 , ...

MATERIAL FOR DEMINERALIZING DENTIN COLLAGEN FIBRIL, PREPARATION METHOD AND APPLICATION THEREOF

a The invention relates to a dentin collagen fibril demineralizing material, and a preparation method and application thereof. The invention relates to a conjugate of water-soluble chitosan and an aminocarboxylic acid metal chelating agent used for dental demineralization, preferably dentin demineralization. The invention also discloses a dentin collagen fibril demineralizing material and a preparation method and application thereof, wherein the material is prepared from 0.5-1 part by mass of water-soluble chitosan, 10-30 parts by mass of EDTA, and 0.8-1.5 parts by mass of cross-linking agent. The invention relates to a dental demineralization composition comprising a conjugate and a material of the invention. The conjugate, material and composition can be used for dentin demineralization treatment before dental bonding and restoration. When used as a dentin collagen demineralizing agent, they have excellent selective extrafibrillar demineralization performance, good biological compatibility, effective anti-bacterial activity, endogenous matrix protease-inhibiting activity and extremely low cytotoxicity. 1. A conjugate of a water-soluble chitosan and an aminocarboxylic acid metal chelating agent , for use in dental demineralization , preferably dentin demineralization.2. The conjugate according to claim 1 , wherein the aminocarboxylic acid metal chelating agent is selected from the group consisting of ethylenediaminetetraacetic acid claim 1 , hydroxyethyl ethylenediaminetriacetic acid claim 1 , diethylenetriaminepentaacetic acid claim 1 , aminotriacetic acid claim 1 , dihydroxyethyl glycine claim 1 , ethylene glycol tetraacetic acid claim 1 , ethylenediamine diacetic acid claim 1 , triethylenetetraaminehexaacetic acid claim 1 , cyclohexanediamine tetraacetic acid claim 1 , 1 claim 1 ,4 claim 1 ,7 claim 1 ,10-tetraazacyclododecane-1 claim 1 ,4 claim 1 ,7 claim 1 ,10-tetraacetic acid claim 1 , 1 claim 1 ,4 claim 1 ,8 claim 1 ,11-tetraazacyclododecane-1 claim 1 ,4 ...

DENTAL MILL BLANK AND METHOD FOR PRODUCING SAME

The present invention provides a dental mill blank that exhibits desirable resistance against wear in opposing teeth. The present invention relates to a dental mill blank comprising: 1: A dental mill blank comprising:an inorganic filler containing an inorganic filler (A) and an inorganic filler (B); anda polymer, [{'br': None, 'i': 'a<', '0.001≤0.3\u2003\u2003(I)'}, {'br': None, 'i': 'b≤', '0.3≤10\u2003\u2003(II)'}, {'br': None, 'i': 'x≤', '5≤80\u2003\u2003(III),'}], 'the inorganic filler (A) partly forming an aggregate, and the dental mill blank satisfying the following formulae (I) to (III),'}where a is an average primary particle diameter of the inorganic filler (A) in micrometers, b is an average primary particle diameter of the inorganic filler (B) in micrometers, and x is an average particle diameter of the aggregate in micrometers.2: The dental mill blank according to claim 1 , comprising an island component containing the aggregate claim 1 , and a sea component containing the inorganic filler (A) and the inorganic filler (B).3: The dental mill blank according to claim 2 , wherein the island component has an area fraction of 5 to 20% in a cross section observed with a microscope.4: The dental mill blank according to claim 2 , wherein the sea component has a ratio of [total area of inorganic filler (A) and inorganic filler (B)]/[polymer area] of 60/40 to 80/20 as measured in a cross section observed with a microscope.5: The dental mill blank according to claim 2 , wherein the island component has a ratio of [area of inorganic filler (A)]/[polymer area] of 50/50 to 60/40 as measured in a cross section observed with a microscope.6: The dental mill blank according to claim 1 , wherein the content of the inorganic filler is 70 to 95 mass %.7: The dental mill blank according to claim 1 , wherein the content of the polymer is 5 to 30 mass %.8: The dental mill blank according to claim 1 , wherein the dental mill blank has a mass ratio of [content of inorganic filler ...

ORAL COMPOSITOINS AND METHODS OF USE

Compositions that include from 0.1 wt-% to 8 wt-% of one or more compounds of formula (I) based on the total weight of the composition 1. A composition comprising: {'br': None, 'sub': 2', 'n', '2, 'sup': 1', '2, 'HOCH—(CHOH)—CHNRR\u2003\u2003(I)'}, 'from 0.1 wt-% to 8 wt-% of one or more compounds of formula (I) based on the total weight of the composition'}{'sup': 1', '2', '3', '4', '3', '4, 'sub': '2', 'wherein Rand Rare independently selected from the group consisting of a hydrogen atom, an alkyl group, C(O)R, and SOR; with Rand Rbeing independently selected from the group consisting of an alkyl group, an aryl group, and an aralkyl group; wherein n is an integer from about 2 to about 5;'}from 5 wt-% to 95 wt-% of one or more plant-based oils based on the total weight of the composition; 'wherein the composition has a pH from 4.5 to 9.5, the composition is an emulsion, and the composition is edible.', 'from 5 wt-% to 80 wt-% water based on the total weight of the composition, and from 0.01 wt-% to 1 wt-% of one or more nonionic aromatic phenolic preservatives based on the total weight of the composition'}2. The composition according to claim 1 , wherein R1 and R2 are independently selected from the group consisting of a hydrogen atom claim 1 , an alkyl group claim 1 , and C(O)R3 claim 1 , wherein at least one of R1 and R2 is C(O)R3 claim 1 , R3 is selected from the group consisting of an alkyl group having seven carbon atoms claim 1 , an alkyl group having eight carbon atoms claim 1 , and an alkyl group having nine carbon atoms.3. The composition according to claim 1 , wherein n is 4.4. The composition according to claim 1 , wherein there is from 1 to 2 wt-% of formula I.5. The composition according to claim 2 , wherein Ris an alkyl group having eight carbons.6perillacamellia. The composition according to claim 1 , wherein the one or more edible plant based oils are selected from: sunflower oil claim 1 , safflower oil claim 1 , olive oil claim 1 , coconut oil ...

DENTURE BASE RESIN FOR 3D PRINTING

Disclosed is a denture base resin for 3D printing that comprises 30 wt %-43 wt % of urethane dimethacrylate (UDMA). 1. A denture base resin for 3D printing , comprising: 30 wt %-43 wt % of urethane dimethacrylate (UDMA).2. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 30.2 wt %-30.9 wt % of UDMA claim 1 , and 0.5 wt %-2.6 wt % of diphenyl (2 claim 1 ,4 claim 1 ,6-trimethylbenzoyl) phosphine oxide (DTPO).3. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 30.2 wt %-30.9 wt % of UDMA claim 1 , 0.5 wt %-2.6 wt % of DTPO claim 1 , 0.0012 wt %-0.006 wt % of Erythrosin B claim 1 , and 0.12 wt %-0.15 wt % of titanium dioxide (TiO).4. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 41.3 wt %-43 wt % of UDMA claim 1 , and 0.4 wt %-4 wt % of diphenyl phosphine oxide (DTPO).5. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 41.3 wt %-43 wt % of UDMA claim 1 , 0.4 wt %-4 wt % of DTPO as a photoinitiator claim 1 , 0.0012 wt %-0.006 wt % of Erythrosin claim 1 , and 0.12 wt %-0.15 wt % of TiO.6. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 1.6 wt %-2.1 wt % of ethyl 4-(dimethylaminomino) benzoic acid (DMAB).7. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 19.2 wt %-25 wt % of triethylene glycol dimethacrylate (TEGDMA).8. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 11.5 wt %-15 wt % of Bisphenol A glycidyl methacrylate (Bis-GMA).9. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 10 wt %-14.5 wt % of pentaerythritol tetraacrylate (PETRA).10. The denture base resin for 3D printing according to claim 1 , wherein the resin comprises 11.5 wt %-15 wt % of Di (trimethylolpropane)-tetraacrylate (Di-TMPTA). The present disclosure generally relates to ...

PERIODONTAL DISEASE THERAPY

Disclosed are formulations for oral films and other compositions containing therapeutic agents. The therapeutic agents interfere with succinate/succinate receptor signaling. The films and compositions of the present disclosure can be used to treat periodontal disease. 3. The oral thin film of claim 1 , wherein the succinate/succinate receptor 1 inhibitor is compound 4C claim 1 , 7a claim 1 , or a succinate salt thereof.4. The oral thin film of claim 1 , wherein the polymer is an alginate.5. The oral thin film of claim 4 , wherein the alginate is calcium alginate.6. The oral thin film of claim 1 , wherein the polymer is a gelatin claim 1 , chitosan or cellulose based polymer.7. The oral thin film of claim 1 , wherein the succinate/succinate receptor 1 inhibitor is compound 4C claim 1 , 7a claim 1 , or succinate salts thereof claim 1 , and the polymer is calcium alginate.8. The oral thin film of claim 7 , wherein the succinate/succinate receptor 1 inhibitor and the calcium alginate are present in a ratio (w/w) of 1:10 to 1:100.9. The oral thin film of claim 8 , wherein the succinate/succinate receptor 1 inhibitor and the calcium alginate are present at a ratio of 1:50.10. A method of treating periodontal disease in an individual comprising administering to an individual in need of treatment an oral film of into the oral cavity of said individual.11. The method of claim 10 , wherein the succinate/succinate receptor 1 inhibitor in the oral film has the structure of Structure II.12. The method of claim 10 , wherein the succinate/succinate receptor 1 inhibitor in the oral film comprises one or more of compounds 4C claim 10 , 7a and succinate salts thereof.13. The method of claim 10 , wherein the individual is afflicted with type 2 diabetes.14. The method of claim 10 , wherein the individual is a human.15. The method of claim 10 , wherein the individual is a non-human animal.16. The method of claim 15 , wherein the non-human animal is a cat or a dog. This application ...

Dental Composite Milling Blanks with Enhanced Mechanical Properties and Methods of Making the Same

A dental resin composite comprising a thermally cured composition of polymeric resin monomers and inorganic fillers that comprise at least 80 wt % total filler loading is provided. Mill blocks made from the dental resin composite and produced via free radical polymerization under high-temperature (approximately 160° C. to 220° C.) and high-pressure process (approximately 300 MPa to 560 MPa) exhibited enhanced mechanical strength and good esthetics suitable for use in CAD/CAM indirect restorations such as, inlays, onlays, crowns and bridges. 1. A method of making a polymerized composite block for use in dental restorations , comprising: i. 15 wt % to 25 wt % of at least one polymeric resin monomer comprising an acrylate or methacrylate group;', 'ii. 75 wt % to 85 wt % of at least one inorganic filler, based on the total weight of the composition; and', 'iii. a thermal polymerization initiator to initiate polymerization of the polymeric resin monomer;, 'a. providing a polymerizable resin composite that comprises'}b. placing the polymerizable resin composite in a mold for shaping into a block;c. polymerizing the polymerizable resin composite in the mold at a temperature in the range of 160° C. to 220° C. and a pressure in the range of 250 MPa to 560 MPa.2. The method of claim 1 , wherein the polymerizable resin comprises bisphenol A glycidyl methacrylate (BisGMA) claim 1 , ethoxylated bis phenol A dimethacrylate (EBPADMA) claim 1 , triethyleneglycol dimethacrylate (TEGDMA) claim 1 , 1 claim 1 ,6-hexanediol dimethacrylate (HDDMA) claim 1 , 1 claim 1 ,10-decanediol dimethacrylate (DMA) claim 1 , neopentyl glycol dimethacrylate (NPDMA) claim 1 , polyethylene glycol dimethacrylate claim 1 , urethane dimethacrylate (UDMA) claim 1 , trimethylolpropane trimethacrylate (TMPTMA) claim 1 , or polytetramethylene glycol dimethacrylate claim 1 , or a combination of two or more thereof.3. The method of claim 1 , wherein the polymerizable resin comprises EBPADMA having 2 to 6 units ...

BONDABLE MICROCAPSULES AND SURFACE FUNCTIONALIZED FILLERS

A composition comprising microcapsules functionalized with polymerizable functional groups on the surface of said microcapsules wherein the functional groups form covalent bonds with monomers in the continuous phase to enhance the mechanical properties of the composition. 1. A composition comprising a monomer , an initiator , and a nonbiodegradable microcapsule encapsulating an aqueous solution of a salt wherein said microcapsule has a surface functionalized with a polymerizable acrylate functional group capable of polymerizing with said monomer.2. The composition of wherein the aqueous solution of a salt contains ions selected from the group consisting of: fluoride claim 1 , calcium claim 1 , phosphate claim 1 , and combinations thereof.3. The composition of comprising a combination of salt ions wherein the combination of salt ions is achieved by using a plurality of microcapsules that contain either fluoride claim 1 , calcium claim 1 , or phosphate claim 1 , wherein each microcapsule contains only one of the fluoride claim 1 , calcium claim 1 , or phosphate ions.4. The composition of wherein the aqueous solution of a salt contains benzalkonium or cetylpyridinium ions.5. The composition of wherein the aqueous solution of a salt is specifically a combination of salts that result in a buffered solution.6. The composition of wherein the buffered solution contains a therapeutic agent.7. The composition of further comprising a photoinitiator.8. A composition comprising a polymeric continuous phase and a discontinuous phase wherein the continuous phase comprises a polymeric material and the discontinuous phase comprised a microcapsule encapsulating an aqueous solution claim 1 , wherein said microcapsule has a surface functionalized with a polymerizable acrylate functional group and is bonded to the polymeric continuous phase.9. The composition of wherein the aqueous solution is an aqueous solution of a salt that contains ions selected from the group consisting of: ...

Novel bioactive glasses and their use

The invention relates to a bioactive glass having a suitable working range for glass processing. Said bioactive glass comprises oxides of silicon, phosphorus, alkalis, alkaline earths and optionally other elements such as boron. According to the invention said oxides are present in the following amounts: SiO2 53 - 60 wt.%; Na2O 0 - 34 wt.%; K2O 1 - 20 wt.%; MgO 0 - 5 wt.%; CaO 5 - 25 wt.%; B2O3 0 - 4 wt.%; P2O5 0.5 - 6 wt.%; provided that Na2O + K2O = 16 - 35 wt.%; K2O + MgO = 5 - 20 wt.% and MgO + CaO = 10 - 25 wt.%.

Dental material

A white, substantially non-iron containing dental material formed from Portland cement. The material may be a dental cement, dental restorative or the like.

Dental materials having a nanoscale filler

Dental sealant compositions containing nanometer- sized silica

A method of applying a dental sealant composition to a surface of a tooth or dental restoration is provided. The method involves the steps of providing a sealant composition comprising a filler system of colloidal silica particles dispersed within a methacrylate or acrylate resin and a polymerization system capable of being activated by light. The nanometer-sized silica particles have an average particle size of about 10 nm to about 100 nm. The composition is irradiated with light, preferably blue visible light having a wavelength in the range of about 400 to about 500 nm, so that it hardens. The hardened sealants provide a strong, non-tacky surface finish over a dental restoration or tooth.

Temporary cosmetic dental surface coating

A temporary cosmetic dental coating has a transparent resin matrix containing embedded glass microspheres. The refractive index of the microspheres is at least 0.03 greater than the refractive index of the transparent resin matrix. Incoming light is reflected back in the same direction as it was emanated, providing a lustrous dental coating that is cosmetically appealing and covers dental defects and discoloration. The transparent resin matrix with glass microspheres is formed by mixing together a methacrylate based liquid monomer of methyl methacrylate or BIS-GMA and glass microspheres coated with activators/catalysts. The user applies the mixed composition to the teeth to form a temporary cosmetic dental coating, which is readily removed using a dental pick. A lac resin dissolved in ethyl alcohol is optionally mixed with glass microspheres and applied to teeth surfaces. The coating is hardened by alcohol evaporation and removed by alcohol dissolution.

Dental compositions with natural tooth fluorescence

The invention features a dental composition containing a polycyclic aromatic compound, such as 2-ethyl 9,10-dimethoxy anthracene (EDMOA), in an amount that provides the composition with fluorescence mimicking that of natural teeth.

Infiltrant for dental application

Infiltrant (I) comprises crosslinking monomers having a penetration coefficient (PC) of greater than 50 cm/second, where at least 5 wt.% of crosslinking monomers have at least three polymerizable groups and less than 95 wt.% of crosslinking monomers have two polymerizable groups. An independent claim is included for a kit for preparing (I) comprising a first component with monomers and chemically activable initiators and a second component with activators. ACTIVITY : Antibacterial. MECHANISM OF ACTION : None given.

Infiltrant für die Dentalapplikation

Gegenstand der Erfindung ist ein Infiltrant für die Dentalapplikation, der vernetzende Monomere enthält. Erfindungsgemäß ist vorgesehen, dass er einen Penetrationskoeffizienten PK > 50 cm/s aufweist und die vernetzenden Monomere, bezogen auf die Gesamtmasse der Monomere, wenigstens 5 Gew.-% vernetzende Monomere mit mindestens drei polymerisierbaren Gruppen und höchstens 95 Gew.-% vernetzende Monomere mit zwei polymerisierbaren Gruppen enthalten.

Verwendung von Diacrylsäure- oder Dimethacrylsäureester zur Herstellung von polymerisierbaren Dentalmassen

Dental composite with low shrink tensing and high bend stability

The dental composite material comprises 70-96 wt.% of fillers, 0.5-10 wt.% of non-agglomerated nano-filler with 1-50 nm particle dimensions. The filler component contains 60 wt.% of a filler mixture, which is made from 50-90% of abrasive and 10-50% of fine-particle dental glass. A monomer mixture is also provided as a component. The mixture contains 60-80% bisphenol A-alycidyl methacrylate, 10-18% of urethane dimethacrylate, a member of tricyclodecane-di 2-hydroxy ethyl acrylate, tricyclodecane-di-2-hydroxy ethyl methacrylate, and a residue of triethyleneglycol dimethacrylate or multi-functional cross linking agent.

DENTAL GLASIONOMER CEMENT MATERIAL