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本文对照分析了正常窝沟与初龋的临床诊断、电测诊断和碘渗透检查与组织学诊断的符合率。根据视诊与探诊，临床将２７颗恒牙分为Ａ组（无龋）、Ｂ组（可疑龋）、Ｃ组（釉质龋）三组，然后经电测检查、碘渗透检查，最后做组织学检查，并分析了三种检查方法与组织学诊断的符合率。临床检查与组织学诊断的符合率分别为：Ａ组１００％，Ｂ组３３．３％、Ｃ组６０％；电测检查的符合率分别为：电测无龋组７２．７％、釉质龋组５０％、牙本质浅龋组８７．５％。而碘渗透检查无诊断意义。
This paper analyzes the clinical diagnosis of normal pit fissure and primary caries, electrical test and iodine infiltration examination and histological diagnostic accuracy. According to the diagnosis and exploration, 27 permanent teeth were divided into three groups: group A (no caries), group B (suspicious caries) and group C (enamel caries). Then they were inspected by electric test and iodine infiltration test, Histological examination, and analysis of the three inspection methods and histological diagnosis of coincidence rate. The coincidence rates of clinical examination and histological diagnosis were 100% in group A, 33.3% in group B and 60% in group C, respectively. The coincidence rates of electro-test were 72.7% in electro-caries-free group, enamel caries Group 50%, dentin shallow caries 87.5%. Iodine penetration examination without diagnostic significance.