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戴全口義齒的人爲什麽要求雙側咀嚼?

Posted By vickong pun     July 9, 2021    

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  戴全口義齒的人爲什麽要求雙側咀嚼?全口義齒能否很好地吸附于牙床上而不易脫位.靠的是大氣 壓力和吸附力等物理作用。全口義齒基托邊緣與周圍軟組織緊密 接觸?形成良好的封閉.使空氣不能進入基托與牙床冋,在基托與 牙床間形成負壓,在大氣壓力的作用下,全口義齒能夠緊密地吸附 于牙床上。全口義齒基托與牙床越密合,産生的吸附力越大,義齒 越穩固。如佩載全口義齒用單側咀嚼,對側義齒無上下接觸,勢必 造成撬動,使密合度減小,吸附力減小,導致義齒脫位.撬動的支 點會形成疼痛點.造成牙床疼痛、破潰。由此可見,戴用全口義齒 必須要保證雙側咀嚼。

                    

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