METHODS:128 cases of 236 premolar teeth with dental wdge-shaped defects were randomly divided into two groups-one group restored by FX and the other group restored by light cure resin.

• 方法:选择前磨牙楔形缺损的患者128例236个患牙进行修复治疗,将患牙随机分为两组,一组用FX修复,另一组用光固化复合树脂修复,经6个月、1年、2年观察,比较修复的成功率。