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 .

体外评价比较平行牙合翼片(BWR)、激光荧光法(LF)和模拟临床检查(CE)等3种诊断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.

法在100例颅骨上按一法,应用游标卡尺等对颧骨与邻骨形成各骨缝皮下段进行测量。