Organic-Inorganic Hybrid Dental Restorative Material

Sol-Gel Materials, 1. Synthesis and Hydrolytic Condensation of New Cross-Linking Alkoxysilane Methacrylates and Light-Curing Composites Based upon the Condensates

“…[5] Presently, the main efforts to improve the performance of composites for dental fillings centre on reducing the polymerisation shrinkage, and improving the marginal adaptation, abrasion resistance, and biocompatibility. [6] For this purpose, various organicinorganic hybrid sol-gel materials are used, for example, ormocers based on urethane and thioether methacrylate alkoxysilanes, [7] polymeric or cyclic siloxanes, [8] organosilsesquioxanes, [9] or precursor copolymers which are Full Paper: New methacryloyloxyalkylaminoalkylalkoxysilanes have been synthesised by Michael addition of the corresponding acryloyloxyalkyl methacrylates with (3-aminopropyl)triethoxysilane (APTES). Low-viscosity polycondensates have been formed by hydrolysis and condensation of these silanes in the presence of ammonium fluoride (NH 4 F).…”