Abrasion resistant dental composition product and process
AssigneeDentsply Research & Development Corp.
InventorAndrew T. C. Liu
Life of this patent
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Abstract
Dental composition, product and process using a silicon containing abrasion resistant material. The dental products formed are abrasion resistant and self-lubricating across their entire cross sections. Dental compositions useful for forming dental products in accordance with the invention preferably includes an ethylenically unsaturated silane. The composition is formed into a dental prosthesis, such as an artificial tooth, inlay, onlay, facing, crown or bridge.
Claims15
An artificial tooth dental prosthesis comprising an enamel coating and a body, at least one of said enamel and said body comprising a matrix polymer, said enamel being laminated over said body, said enamel being prepared by molding a composition comprising from about 0.5 percent to about 20 percent by weight of one or more polymerizable silicon containing compounds within the scope of the general formula
- wherein R1 and R2 each independently is hydrogen or a lower alkenyl having from 1 to 6 carbon atoms, R3 and R4 each independently is hydrogen or a lower alkyl having from 1 to 6 carbons atoms, and j is an integer from 1 to 6 , each of said silicon containing compounds being without either a hydroxy group or an alkoxy group, said enamel being an interpenetrating polymer network.
An artificial tooth dental prosthesis comprising an enamel coating and a body, said enamel being integrally connected to said body, said body having self lubricating polymer particles, said enamel comprising a matrix polymer, said enamel being prepared from a composition comprising from about 0.5 percent to about 20 percent by weight of polymerizable silicon containing compounds within the scope of the general formula
- wherein R1 and R2 each independently is hydrogen or a lower alkenyl having from 1 to 6 carbon atoms R3 and R4 each independently is hydrogen or a lower alkyl having from 1 to 6 carbons atoms, and l is an integer from 1 to 6 , each of said silicon containing compounds being without either a hydroxy group or an alkoxy group.
An artificial dental tooth prosthesis comprising an enamel coating and a body, at least one of said enamel and said body comprising a matrix polymer, said enamel being laminated over said body, said enamel being prepared by molding a composition comprising from about 0.5 percent to about 20 percent by weight of one or more polymerizable silicon containing compounds within the scope of the general formula
- wherein R5, R′5, R6, R′6, R7 and R8, independently are hydrogen or a lower alkyl of from 1 to 6 carbons and m is an integer from 1 to 6, each of said silicon containing compounds being without either a hydroxy group or an alkoxy group, said enamel being an interpenetrating polymer network.
An artificial dental tooth prosthesis comprising an enamel coating and a body, said enamel being integrally connected to said body, said tooth comprising a matrix polymer, said tooth being prepared from a composition comprising from about 0.5 percent to about 20 percent by weight of polymerizable silicon containing compounds within the scope of the general formula
- wherein R5, R′5, R6, R′6, R7 and R8, independently are hydrogen or a lower alkyl of from 1 to 6 carbons and n is an integer from 1 to 6, each of said silicon containing compounds being without either a hydroxy group or an alkoxy group.
An artificial tooth dental prosthesis comprising an enamel coating and a body, at least one of said enamel and said body comprising a matrix polymer, said enamel being laminated over said body, said enamel being prepared by molding a composition comprising from about 0.5 percent to about 20 percent by weight of one or more polymerizable silicon containing compounds within the scope of one of the general formulas
- and
- wherein R1 and R2 each independently is hydrogen or a lower alkenyl having from 1 to 6 carbon atoms, R3 and R4 each independently is hydrogen or a lower alkyl having from 1 to 6 carbons atoms, and l is an integer from 1 to 6 , j is an integer from 1 to 6 , each of said silicon containing compounds being without either a hydroxy group or an alkoxy group, said enamel being an interpenetrating polymer network.
Dependencies are inferred from the claim text.