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爲什麽有時候補牙需要墊底?

Posted By vickong pun     July 14, 2021    

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爲什麽有時候補牙需要墊底?

  爲什麽有時候補牙需要墊底?一般對于淺表的解壞?或較淺的中綢,都能直接用材料直接充 填。對于中解醺洞較深.或者深朗但未接近牙的解洞,爲r避免 充填材料的刺激性和傳導性,一般在充填前需要在充填材料的下 面墊襯一層刺激相對較小的材料。如果飾洞很深?洞底已經接近 牙骸.則應該雙層墊底,也就是在第一層墊底材料下方再墊襯一層對牙儲刺激小的材料。常用的理想材料是氧化鋅丁香油粘固粉. 如果在制備洞形過程中患者反應強烈,可以用氧化鋅丁香油粘固 粉將窩洞充填,觀察一段時間,待患者症狀沒有加重再考慮第二次 墊底充填。

                    

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