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牙齿做窝沟封闭的最适宜时间是

单选题
2021-09-01 19:31
A、穿破牙龈时
B、合面露出时
C、对颌牙也已萌出时
D、牙萌出后达到合平面时
E、以上时机均可
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正确答案
D

试题解析

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