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15岁正常牙齿多少颗
更新时间: 2020-11-05 00:00:00  

15岁正常牙齿有28颗,正常的成年人口腔里面有28-32颗牙齿。如果长第三磨牙,有可能有32颗牙齿。如果没有第三磨牙,即智齿,28颗牙也算正常。人从出生后的半岁左右开始萌出第1颗牙齿,到两岁半左右乳牙列建立。

关键词: 正常 牙齿 多少

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