Fig. 3.

Case 2. a-c), Pre-operative intraoral view of the mandibular right posterior sextant. d), Pre-operative intraoral photograph, lingual view of furcation defect showing ML deep pocket and grade III furcation involvement of tooth #30. e) Clinical lingual view showing horizontal and vertical bone loss of tooth #30. f), Application of grafting material to the buccal surface of bony defect. g), Application of harvested PRF membrane to cover the grafted defect. h-j) 1-year post-operative intraoral photographs, facial, occlusal and lingual view. k), Periapical radiograph showing status of #30 bone defect pre-operatively. l-m), Periapical radiograph showing the status of #30 bone defects before surgery, 6-month and 1-year post-operatively.