牙齒發育From the age 6 to 12 a child will be losing baby teeth and getting their permanent adult teeth. There are times when permanent teeth are "stuck" in the bone and gum. However, it is possible to lift back the gum and remove a small amount of bone, allowing these teeth to erupt into the mouth. By the time a child reaches age 21 years all 32 permanent teeth will usually have erupted.
從年齡6到12,乳齿會掉去和永久成人牙會萌發。 有时恆牙會卡在骨頭內,這時我們必須去除少量骨頭,允許這些牙萌發進入口腔。 當孩子到達年齡21年的時候全部32個恆牙通常恆牙萌發完成。 |
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