Modified approach of regenerative treatment for distal intrabony defect beneath non-keratinized mucosa at terminal molar: A case report

Figure 3 The modified procedure of the regenerative surgery on the mandibular left second molar. A: The vertical incision was made on the distobuccal keratinized gingiva of the second molar; B: The whole distal non-keratinized soft tissue was tunnel-like elevated, and a 3 wall-intrabony defect was exposed; C: The intrabony defects was filled with deproteinized bovine bone mineral and covered with collagen membrane; D: The flap was positioned and sutured tightly. The vertical incision was closed with interrupted and anchored suture.