自1994年,我们利用光固化灯透照法检查诊断牙隐裂38例49牙。方法简单,效果满意。1　临床资料1.1　一般情况　本组男25例,女13例。出现继发症42牙,无任何症状行牙体缺损光固化充填中发现7牙。第1磨牙29牙,第2磨牙5牙,前磨牙15牙。1.2　操作方法　(1)前牙、前磨牙:将光束分别从牙 Since 1994, we have used light-cured lamp to examine the diagnosis of occult fracture in 38 patients and 49 teeth. The method is simple, the effect is satisfactory. 1 Clinical data 1.1 General This group of 25 males and 13 females. Appeared secondary teeth 42 teeth, no symptoms of dental defects in the light-cured filling found 7 teeth. First molar 29 teeth, second molar 5 teeth, premolar 15 teeth. 1.2 operating methods (1) anterior teeth, premolar: the beam from the tooth