25-07-2013 дата публикации
Номер: US20130189337A1
A dentinal tubule sealant comprises poorly-soluble calcium phosphate particles (A), a phosphorus-free calcium compound (B), and water (C), wherein the particles (A) are at least one member selected from the group consisting of dicalcium phosphate anhydrous [CaHPO] particles, α-tricalcium phosphate [α-Ca(PO)] particles, β-tricalcium phosphate [β-Ca(PO)] particles, amorphous calcium phosphate [Ca(PO).nHO] particles, calcium pyrophosphate [CaPO] particles, calcium pyrophosphate dihydrate [CaPO.2HO] particles, octacalcium phosphate pentahydrate [CaH(PO).5HO] particles, and dicalcium phosphate dihydrate [CaHPO.2HO] particles, and the dentinal tubule sealant contains 30 to 76% by weight of the particles (A), 0.001 to 4% by weight of the compound (B), and 23 to 69% by weight of the water (C). Thus, there is provided a dentinal tubule sealant capable of sealing dentinal tubules of an exposed dentin and also remineralizing the surrounding dentin after the sealing. 1. A dentinal tubule sealant , comprising:from 30 to 76% by weight of poorly-soluble calcium phosphate particles;from 0.001 to 4% by weight of a phosphorus-free calcium compound; andfrom 23 to 69% of water,{'sub': 4', '3', '4', '2', '3', '4', '2', '3', '4', '2', '2', '2', '2', '7', '2', '2', '7', '2', '8', '2', '4', '6', '2', '4', '2, 'wherein the poorly-soluble calcium phosphate particles are at least one member selected from the group consisting of a dicalcium phosphate anhydrous [CaHPO] particle, an α-tricalcium phosphate [α-Ca(PO)] particle, a β-tricalcium phosphate [β-Ca(PO)] particle, an amorphous calcium phosphate [Ca(PO).nHO] particle, a calcium pyrophosphate [CaPO] particle, a calcium pyrophosphate dihydrate [CaPO.2HO] particle, an octacalcium phosphate pentahydrate [CaH(PO).5HO] particle, and a dicalcium phosphate dihydrate [CaHPO.2HO] particle.'}2. The dentinal tubule sealant according to claim 1 ,{'sub': 2', '2', '3', '2', '2', '3', '2', '2', '2', '6', '10', '6', '3', '6', '5', '7', '2', '2', '3', '2', ...
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