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目的:比较临床检查(CE),常规X线片(CR),牙合翼片(BW)和牙科X线影像诊断系统(RVG)诊断可疑牙合面龋的精确性。方法:44个可疑牙合面龋的离体牙作为研究对象,以病理组织学检查为标准,测定计算真、假阳性率(TP,FP)和预测值(TP/FP)。结果:TP和FP是:CE=0.63和1.91,CR=0.59T和0.88,BW=0.39和0.58,RVG=0.68和1.85。TP/FP是:CE=1.91,CR=0.88,BW=0.58,RVG=2.06。RVG与CE及CR无显著性差异(P>0.05)。结论:RVG可期望增加诊断效果,并可减少X线剂量和产生即刻影像。
OBJECTIVE: To compare the accuracy of clinical examination (CE), routine X-ray (CR), occlusal wing (BW) and dental radiography (RVG) in the diagnosis of suspicious occlusal caries. Methods: Forty - four teeth with suspected occlusal surface caries were studied. The true and false positive rate (TP, FP) and the predicted value (TP / FP) were calculated by histopathological examination. Results: TP and FP were: CE = 0.63 and 1.91, CR = 0.59T and 0.88, BW = 0.39 and 0.58, RVG = 0.68 and 1.85. TP / FP is: CE = 1.91, CR = 0.88, BW = 0.58, RVG = 2.06. There was no significant difference between RVG and CE and CR (P> 0.05). Conclusion: RVG can be expected to increase diagnostic efficacy and reduce X-ray dose and produce immediate images.