Curable zirconia adhesive compositions for dental restorations

摘要

The present application relates to a polymerizable dental adhesive system formulated for effective and durable bonding of zirconia based materials and restorations to dental resins and dental surfaces. According to one embodiment, a polymerizable dental adhesive system comprises a first acidic monomer comprising an ethylenically unsaturated polymerizable group or moiety of the general formula CH2═CX—C(O)— wherein X is hydrogen, methyl or a lower alkyl group, and the first polymerizable monomer further comprises a phosphoric or phosphonic acid group of general formula —OP(O)(OH)2, —OP(O)(OH), —C—P(O)(OH)2 and —C—P(O)(OH), and a second polymerizable acidic monomer comprises an ethylenically unsaturated polymerizable group or moiety of the general formula CH2═CX—C(O)— wherein X is hydrogen, methyl or a lower alkyl group, and wherein the second polymerizable acidic monomer further comprises a carboxylic acid group of the general formula —C(O)OH.

主权项

1. A dental adhesive system comprising:
a zirconia-based ceramic; and an adhesive composition applied to the surface of the zirconia-based ceramic, comprising:
(a) a first acidic monomer having an ethylenically unsaturated polymerizable group of the general formula CH2═CX—C(O)—R wherein X is hydrogen, methyl or a lower alkyl group, and wherein R comprises a phosphoric acid group or phosphonic acid group having the general formula —OP(O)(OH)2, —OP(O)(OH), —C—P(O)(OH)2 or —C—P(O)(OH); (b) a second acidic monomer having an ethylenically unsaturated polymerizable group of the general formula CH2═CX—C(O)—R1 wherein X is hydrogen, methyl or a lower alkyl group, and wherein R1 comprises a carboxylic acid group having the general formula —C(O)OH; (c) wherein the first acidic monomer comprises about 1% to about 5% of the dental adhesive system by weight; and (d) wherein the second acidic monomer comprises about 2% to about 10% of the dental adhesive system by weight.