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塑料義齒戴久了會不會有毒?

Posted By vickong pun     July 13, 2021    

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塑料義齒戴久了會不會有毒?

  塑料義齒戴久了會不會有毒?目前使用的塑料牙有以下幾種:成品塑料牙、成品塑料牙列、 成品蝦料牙面、造成材料。這幾種都具有良好的生物安全性,對口 腔黏膜無剌激性,無致敏性,無致癌性。但是口腔環境複雜,唾液、 食物殘渣及其分解物、氣氣、隣、微生物等各種化學、生物因素.以 及在熱、光、咀嚼應力等物理因素的共同作用下,以聚丙烯酸酯類 爲主的口腔高分子材料,易出現降解或基團的改變而降低和失去 原有的性能?因此,塑料牙現在多用于暫時修複體。

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