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腾讯网
4月
孩子换牙新长的门牙呈锯齿状,这正常吗?_腾讯新闻
有细心的家长就会发现孩子新长的门牙本应该很平整,怎么切端会出现凹凸不平的锯齿状呢? ... 唇侧三个生长叶的顶端是呈凸形的,而发育沟 ...
腾讯网
4月
孩子换牙新长的门牙呈锯齿状,这正常吗? - 腾讯新闻
孩子在六岁左右会萌出第一颗恒牙,通常称为“六龄齿”,这也标志着孩子的牙齿正式进入了替牙期,在此之后乳牙会陆续的被新长的恒牙所替代。有细心的家长就会发现孩子新长的门牙本应该很平整,怎么切端会出现凹凸不平的锯齿状呢?会不会是发育不良?
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