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換牙後bb牙齒唔齊該點辦?

Posted By vickong pun     July 10, 2021    

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近日好多人咨詢醫生,換牙後bb牙齒唔齊該點辦?深圳維港歡樂口腔醫院專家介紹:bb換牙嘅順序同埋時間大致如下:  乳中切牙         4顆      5~7歲  乳側切牙          4顆      8~9歲  第一乳磨牙        4顆    10歲 換牙後叫做 第一雙尖牙,或 第一前磨牙  乳尖牙          4顆    11歲  第二乳磨牙        4顆    12歲 換牙後叫做 第二雙尖牙,或 第二前磨牙  新出第一恆磨牙    4顆     6歲  新出第二恆磨牙    4顆    12~14歲  新出第三恆磨牙    0~4顆   18歲 俗稱「智齒」
bb牙齒唔齊  ——換牙後bb牙齒唔齊,bb牙縫大需要矯正咩?  小朋友前門牙替換好後,經常排列唔系很整齊,家長很着急,唔知系否需要矯正,其實,前門牙剛剛換好後有一些擠迫系正常生理現象。  其原因系小朋友骨骼比較小,且骨骼會隨着年齡嘅增長不斷變大,而換好門牙大小唔會隨年齡增長而有變化,所以會有暫時性嘅擠迫,而且由於相鄰牙齒萌出時對門牙嘅擠壓(換牙期牙縫大,通常會隨着其他牙換後擠占恢復),常引起門牙嘅歪斜,扭轉,該段時期前牙區牙齒睇上去唔咁整齊,順眼,兒童口腔醫學嘅學者稱該段時期為「丑小鴨期」。隨着小朋友年齡嘅增長和顱骨嘅發育,大部分情況會得到改善。  但如果有以下狀況,則需要矯正了:  (1)嚴重嘅上頜骨或下頜骨骨骼畸形,如表現為前牙過分前突、嘴唇前突等。  (2)唔良習慣嚴重影響牙頜發育。如咬下唇習慣、食手指習慣、口呼吸習慣、吐脷習慣。  (3)個咪牙嚴重錯位,如扭轉牙;個別牙反合(上牙咬喺下牙嘅里面)。

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