1　适应症与磨改的原则做为一种治疗术式,磨改的适应症不应局限于不协调引起的磨牙症;笔者以为应扩展到由于磨牙症而导致的各类咬合障碍。临床上较多的术者在行磨改时忽视了磨牙症常伴有的颞下颌关节功能紊乱综合症或牙周症的症状,对伴颞下颌关节功能紊乱综合症应先使用垫,待 1 indications and the principle of modification as a treatment of surgery, modified indications should not be limited to incontinence caused by bruxism; I think it should be extended to due to bruxism caused by various types of occlusal disorders. Clinically, more surgeons ignore the molars often accompanied by temporomandibular joint dysfunction syndrome or periodontal symptoms, accompanied by temporomandibular joint dysfunction syndrome should be used before the pad, to be