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常用的活動義齒基托都有什麽材料的

Posted By vickong pun     July 11, 2021    

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常用的活動義齒基托都有什麽材料的

  

  • 金屬基托:由不同的支架金屬材料制作而成,具有強度高、體積小、戴用舒適、溫度傳導性好、易于清潔等優點,缺點是制作難度較高、難以襯墊且不易磨改。
  • 塑料基托:色澤與口腔黏膜接近,美觀,重量輕,便于修補和襯墊,但強度差,體積較大,舒適性差,異物感強,溫度傳導性差。
  • 金屬塑料基托:兼有金屬的優點,設計合理,減小面積,同時又兼有塑料的優點,是臨床上最常用的基托形式。金屬部分又可分爲钴鉻合金鑄造支架、钛合金鑄造支架、純钛鑄造支架。純钛鑄造支架具有良好的生物相容性、重量輕、強度高的優點,但加工技術及設備要求很高,相應價格較貴。

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