PROBLEM TO BE SOLVED: To provide a dental hardening composition for dealing with problems of cracking or chipping caused by distortion occurring between near a metal pattern and inside the metal pattern in a molding which is a large-shaped resin material for dentistry cutting used as a temporary prosthesis or a denture base.SOLUTION: The invention relates to a dental hardening composition containing (a) a monofunctional polymerization monomer with a boiling point of 50-200°C (b) a non-cross-linking (meta) acrylate polymer (c) a polymerization initiator and (d) a chain transfer agent.COPYRIGHT: (C)2016,JPO&INPIT【課題】暫間補綴物や義歯床に用いられる大きな形状の歯科切削加工用レジン材料である成型物の、金型近傍と金型内部との間に発生するひずみに起因するクラックやチッピング問題に対応するための歯科用硬化性組成物の提供。【解決手段】本発明は(a)50~200℃までの沸点を有する単官能性重合性単量体、(b)非架橋性(メタ)アクリレート系ポリマー、(c)重合開始剤、(d)連鎖移動剤を含む歯科用硬化性組成物。【選択図】なし
