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頜下腺炎的原因是什麼?

Posted By vickong pun     July 13, 2021    

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頜下腺炎的原因是什麼?

  

  頜下腺炎的原因是什麼?下頜下腺是混合性腺體,分泌的唾液富含黏蛋白,較腮腺分泌液黏滯,鈣的含量也高出2倍,鈣鹽容易沈積。
下頜下腺導管開自下向上走行,腺體分泌液逆重力方向流動。

導管長,在口底後部有一彎曲部,導管全程較曲折,這些解剖結構均使唾液易於淤滯,導致涎石形成。
涎石的產生使導管阻塞和狹窄,引起逆行性感染而發生下頜下腺炎。

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