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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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