Objective: The treatment protocol was designed to assess the efficacy of intracoronal laser teeth bleaching in the treatment of nonvital teeth darkening.

 
  • 目的:探讨激光冠内漂白治疗死髓牙变色的治疗作用。方法:漂白基本操作同激光活髓牙变色的漂白操作程序。
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