Novel Methacrylate-Thiol-Ene Composites for Dental Restorative Materials

DESCRIPTION (provided by applicant): Novel Methacrylate-Thiol-Ene Composites for Dental Restorative Materials. As the demand for aesthetically pleasing restorative materials has increased, so has the desire and demand for improved performance. Despite their increasing prevalence, the resin phase of these materials has remained largely unaltered since Bowen first proposed the materials nearly 50 years ago. Presently, composites suffer from shrinkage and stress that arise during polymerization, a subsequent lack of appropriate mechanical properties of the resin material, and low depth of cure for polymerization. The composites also contain in their core monomer the substitutent bisphenol-A, which is associated with ever increasingly significant regulatory andhealth concerns. Following polymerization, the composites also contain significant fractions of unreacted monomer that results in the critical presence of extractables that coupled with moisture uptake by the sample can lead to degradation. The result is o