Objective: To evaluate the diagnostic efficacy of the bitewing radiograph(BWR),clinic examination(CE) and laser fluorescence examination (LF) for detection of initial posterior approximal caries .

体外评价比较平行投照牙合翼片(BWR)、激法(LF)和模拟临床检查(CE)等3种诊断方法对早期邻面龋诊断水平。

Methods On 100 cranial bones according to specified methods using vernier to measure the subcutaneous segment of each bone suture that is made by zygomatic bone and approximal bone.

方法在100颅骨上按照一定方法,应用游标卡尺等对颧骨与邻骨形成各骨下段进行测量。