一个对，2500名6?13岁儿童的调查表明A.咬合面龋与光滑面龋发生率相同 B.咬合面龋为光滑面龋的4倍 C.咬合面龋为光潸面龋的8倍 D.光滑面龋...

作者: tihaiku 人气: - 评论: 0

问题一个对，2500名6?13岁儿童的调查表明

选项 A.咬合面龋与光滑面龋发生率相同 B.咬合面龋为光滑面龋的4倍 C.咬合面龋为光潸面龋的8倍 D.光滑面龋为咬合面龋的4倍 E.光滑面龋为咬合面龋的8倍

答案 C

解析 [分析]6?13岁儿童窝沟龋较多，故咬合面龋大大高于光滑面龋。

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