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活動義齒爲什麽越戴越松?

Posted By vickong pun     July 9, 2021    

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活動義齒爲什麽越戴越松?

  活動義齒爲什麽越戴越松?隨著義齒使用時間的増加,牙槽骨的吸收,加上基托材料的磨 耗.使基托與黏膜、鄰牙不密合,而造成義齒松動和翹動。可摘式局部義齒經過多次摘戴後,金屬卡環會産生疲勞現象, 彈性變差,容易變形,難以回複到最初與基牙緊密貼合的位置,失 去了卡抱固位作用。

                    

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