PROBLEM TO BE SOLVED: To provide an orthodontic adhesive which improves the ratio (W/C) of working time to curing time since the working time is long and/or the curing time is short.SOLUTION: The orthodontic adhesive includes a curable resin monomer component, a quaternary curing initiator system, and a filler. Another orthodontic adhesive having a W/C ratio (working time to curing time ratio) of at least 10, 12, 14 or 20 includes a curable resin monomer component, a curing initiator system, and a filler. The adhesives are suitable as light-curing and may include a colorant. Suitable colorants include reversible thermochromic dyes. The adhesives may also include a resin toughening component.COPYRIGHT: (C)2009,JPO&INPIT【課題】作用時間が長く、かつ/または硬化時間が短いため、作用/硬化(W/C)比が向上した矯正用接着剤を提供すること。【解決手段】矯正用接着剤は、硬化性樹脂モノマー成分と、四元硬化開始剤系と、充填剤とを含む。少なくとも10、12、14または20のW/C比(作用時間対硬化時間比)を有する別の矯正用接着剤は、硬化性樹脂モノマー成分と、硬化開始剤系と、充填剤とを含む。接着剤は、光硬化に好適であり、着色剤を含むことができる。好適な着色剤は、可逆的熱変色性染料を含む。接着剤は、樹脂強靱化成分を含むこともできる。【選択図】なし
