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咬唇習慣有哪些危害？

Posted By vickong pun     July 13, 2021    

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咬唇習慣有哪些危害？


    　　



    咬唇習慣有哪些危害？



    　　咬唇習慣有哪些危害？咬唇習慣多發生在6·15歲，常由于兒童情緒不好岀現咬唇 動作，日久形成咬唇習慣，女孩比較多見。

    咬下唇時.可出現上前 牙唇向傾斜、前突並出現牙間隙，下牙和下颌向前發育障礙?下前 牙擁擠、下颌後縮、前牙深覆矜及開脣露齒等。

    咬上唇時，可形成 前牙反希、上前牙舌向傾斜、下颌前突等。

    

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