牙周病发生的始动因素是A.牙菌斑 B.牙石 C.白垢 D.食物嵌塞 E.内分泌紊乱

作者: tihaiku 人气: - 评论: 0

问题牙周病发生的始动因素是

选项 A.牙菌斑 B.牙石 C.白垢 D.食物嵌塞 E.内分泌紊乱

答案 A

解析

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