20.如下圖所示,上顎右側正中門齒頰側根尖處牙齦有明顯腫脹現象,而牙周囊袋探測結果均在正常範圍內,若 欲進行患齒之根尖手術治療(apical surgery),最適合的翻瓣設計為何?
(A)緣下曲線翻瓣(submarginal curved flap)
(B)緣下方形翻瓣(submarginal rectangular flap)
(C)方形翻瓣(rectangular flap)
(D)三角形翻瓣(triangular flap)
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統計: A(312), B(708), C(114), D(55), E(0) #2626095
統計: A(312), B(708), C(114), D(55), E(0) #2626095