초록 |
Commercial organic matrixes contains 2,2-bis[4-(2-hydroxy-3-methacryloyxy propoxy) phenyl] propane (Bis-GMA) as a base resin and triethylene glycol dimethacylate (TEGDMA) as a diluent. However, the diluent exhibits adverse effects such as curing shrinkage and diminished mechanical properties of the dental composites. Spiro orthocarbonates (SOCs) have been widely investigated because they show significant volume expansion during polymerization. In the study related to the resin matrix, monomers containing spiro groups, carbon double bonds, and bisphenol unit will be synthesized. When monomer containing spiro groups which have volume expansion properties at curing process, carbon double bonds which enhance curing reactivity, and bisphenol unit which increases mechanical strength of the resin is used as a component of resin matrix, the resulting composites may exhibit non-shrinking characteristics at cure. |