有关牙石，哪项是不正确的A.牙石对牙周组织的危害主要来自机械刺激B.牙石增加了菌斑的滞留C.龈下牙石需用牙周探针检查D.龈下牙石对牙周组织...

作者: rantiku 人气: - 评论: 0

问题有关牙石，哪项是不正确的 A.牙石对牙周组织的危害主要来自机械刺激 B.牙石增加了菌斑的滞留 C.龈下牙石需用牙周探针检查 D.龈下牙石对牙周组织的危害大于龈上牙石 E.牙周病的治疗应彻底清除牙石

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答案 A

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