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活動義齒的基托有哪些類型

Posted By vickong pun     July 5, 2021    

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活動義齒的基托有哪些類型

  活動義齒的基托有哪些類型

  第2章 活動義齒的基托有哪些類型活動義齒的基托,俗稱假牙托板,其主要作用是以此爲基礎排列假牙,分散和承受進食時的咀嚼力以加強假牙的固位和穩定。從材料上來分,基托大致可分爲塑料基托、金屬基托、金屬塑料基托三大類。它們各有優缺點,可滿足不同需要。①塑料基托色澤美觀,可達到近似黏膜的效果,其操作技術也較簡單,價廉,重量輕,一旦折損可進行修複,但其堅韌性差,不能承受較大的咀嚼力,它的溫度傳導性不理想。塑料基托不易清潔,易沾染汙漬而變色,體積較大,給患者帶來較大的異物不適感。②金屬基托強度較高,不易折斷,體積小且薄,異物感小,金屬的熱傳導好,患者能及時感覺口腔中的溫度變化,但金屬基托的操作要求高,需要一定的設備,且修理和加補困難。③金屬塑料基托。這種混合型基托以塑料爲主,金屬部分主要放置在托板受力較大易損傷的部位,以增加塑料的強度,而且塑料的厚度亦可適量減少,以減少異物感,增加溫度感。隨著科學的發展,將會開發出新的基托材料,制作出更好、更舒適的活動義齒,讓每一位戴假牙的患者更好地享受生活。

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