Radiation - curable dental composition and a curable dental composition comprising a heat transducer, as well as articles comprising the cured composition and curing such compositions are provided. Upon irradiation, the temperature of the cured composition increases, it is useful to lower the bond strength of orthodontic appliances attached to the tooth structure with a curable composition.放射線-熱変換体を含む硬化性歯科用組成物及び硬化歯科用組成物、並びにこのような硬化性組成物及び硬化組成物を含む物品が提供される。照射すると、硬化組成物の温度が上がり、硬化組成物を用いて歯牙構造に付着した歯科矯正装具の結合強度を下げるのに有用である。