Resin systems for dental restorative materials and methods using same

摘要

The invention includes a new photopolymerizable resin system for dental restorative materials. The resin system utilizes a thiol-ene component as the reactive diluent in dimethacrylate systems. The ternary resin system comprises a thiol monomer, an ene monomer and a dimethacrylate monomer. The system of the invention has enhanced overall functional group conversion, improved polymer mechanical properties, and reduced shrinkage stress of the ternary system when compared to either traditional dimethacrylate or thiol-ene resin systems.

主权项

1. A photopolymerizable dental restorative composition comprising polymerizable monomers, wherein:
about 50% to about 70% of the total weight of the polymerizable monomers is a methacrylate monomer, the balance by weight of the polymerizable monomers is a mixture of a thiol monomer and an ene monomer; and, the molar ratio of thiol functional groups from the thiol monomer relative to the ene functional groups from the ene monomer is greater than about 1.5:1.