An adhesive composition comprises 100 parts by weight of a polymerizable monomer comprising (a) 1.5 to 100 parts by weight of a compound represented by general formula I or II: [Figure] (I) or [Figure] (II) where R1 and R1′each stand for hydrogen or a methyl group, R2 stands for a divalent organic r
An adhesive composition comprises 100 parts by weight of a polymerizable monomer comprising (a) 1.5 to 100 parts by weight of a compound represented by general formula I or II: [Figure] (I) or [Figure] (II) where R1 and R1′each stand for hydrogen or a methyl group, R2 stands for a divalent organic residue having 4 to 40 carbon atoms, X1 and X2 each stand for －O－, －S－or －NH－, a is 0 or 1, and R3 stands for a group of the formula [Figure] having 6 to 40 carbon atoms, where R4 and R4′each stand for a hydrocarbon group having 1 to 29 carbon atoms, and optionally replaced by a halogen atom, or a hydroxyl, amino or carboxyl group, b is an integer of 0 to 3, and Z stands for －O－, －COO－or －NH－, a plurality of R4′(when b is 2 or 3) being the same or different, at least one of R4 and R4′having at least three carbon atoms, and (b) 0 to 98.5 parts by weight of a vinyl monomer copolymerizable with the above compound; and 0.01 to 20 parts by weight of a curing agent. It shows a superior adhesive strength on any of hard tissues in a living body, such as teeth and bones, metals, organic polymers and ceramics. It maintains a high adhesive strength for a long time even if it is exposed to moisture, or immersed in water. It is particularly effective for use in dentistry, though it is useful for a variety of other purposes, too.
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A method for restoring a carious tooth, comprising: applying to a wall surface of a cavity in a carious tooth an adhesive composition which comprises 100 parts by weight of a polymerizable monomer comprising (a) 0.5 to 1.5 parts by weight of a compound represented by one of formulas I or II: [Figure
A method for restoring a carious tooth, comprising: applying to a wall surface of a cavity in a carious tooth an adhesive composition which comprises 100 parts by weight of a polymerizable monomer comprising (a) 0.5 to 1.5 parts by weight of a compound represented by one of formulas I or II: [Figure] (I) and [Figure] (II) where R1 and R′1 each stand for hydrogen or a methyl group, R2 stands for a divalent organic residue having 4 to 40 carbon atoms, X1 and X2 each stand for －O－, －S－or －NH－, a is 0 or 1, and R3 stands for a group of the formula [Figure] having 6 to 40 carbon atoms; where R4 and R′4 each stand for a hydrocarbon group having 1 to 29 carbon atoms, which is unsubstituted or substituted by a halogen atom, or a hydroxyl, amino or carboxyl group, and b is an integer of 0 to 3, a plurality of R′4 being the same or different, at least one of R4 and R′4 having at least three carbon atoms, and Z stands for －O－, －COO－or －NH－, and (b) 98.5 to 99.5 parts by weight of a vinyl monomer copolymerizable with said compound, and 0.01 to 20 parts by weight of a curing agent; and filling said cavity with a dental filling composition comprising a polymerizable monomer, a filler and a curing agent.
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