D屬於rotational flap procedure
順帶一提,前一題的分類
Class I: marginal tissue recession不到MGJ
Class II: marginal tissue recession到或超過MGJ, no loss of interdental bone & sot tissueClass III: marginal tissue recession到或超過MGJ, loss of interdental bone & sot tissue比margin還coronal
Class IV: marginal tissue recession到或超過MGJ, loss of interdental bone & sot tissue比margin還apical
79.如下圖患者左側上顎犬齒有一深且寬之牙齦萎縮,頰側有2 mm之附連牙齦,鄰接..-阿摩線上測驗