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恒牙牙齒萌出的順序和時間?

Posted By vickong pun     July 14, 2021    

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恒牙牙齒萌出的順序和時間?


      



    恒牙牙齒萌出的順序和時間?



      恒牙牙齒萌出的順序和時間?恒牙萌出順序通常為先下頜後上頜的規律,其萌出順序及大致時間為:

    第一磨牙(6~7歲)——中切牙(7~8歲)——側切牙(9~10歲)——第一前磨牙(11~12歲)——尖牙(11~12歲)——第二前磨牙(11~12歲)——第二磨牙(12~13歲)——第三磨牙(17~26歲)。

      牙齒萌出的順序和時間存在較大的個體差異,受環境因素影響更為常見。

    

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