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為什麼有的牙齒需要做根管外科手術?根管外科是將根管治療術和外科手術結合起來治療牙髓、尖周病的方法。雖然根管治療術的適應證逐漸擴大,許多過去不能治療的牙現在大部分可保留,但有一部分病例僅用根管治療術難以治癒,必須輔以外科手術。
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