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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 .

体外较平行投照的牙合翼片(BWR)、激光荧光法(LF)和模拟临床检查(CE)等3种断方法对早期邻面龋的断水平。