下列哪项与牙体缺损的成因无关（　　）A.楔状缺损B.重度磨耗C.牙周病D.牙外伤E.龋病

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问题下列哪项与牙体缺损的成因无关（　　） A.楔状缺损 B.重度磨耗 C.牙周病 D.牙外伤 E.龋病

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答案 C

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