Regenerative approaches have been an important issue in periodontology for decades.It is possible to regain lost periodontal tissues with various regenerative approaches. Restoration of resorbed alveolar bone can be possible using various membranes and bone grafts. This case report presents the treatment of an intrabony vertical defect with guided tissue regeneration (GTR). A systemically healthy 49-year-old male patient was admitted to our clinic with the complaint of mobility in his right lower molar. On clinical examination of the patient, an intrabony defect with a probing depth of 9 mm was detected in the mesial region of the right lower second molar. Following Phase I periodontal treatment, the patient was called for a control session 1 month later. Surgical treatment with GTR was planned for the tooth, which was determined to have insufficient healing.Following local anesthesia for tooth number 47, a full thickness flap was removed and the inflamed granulation tissues and dental calculus were cleaned.GTR procedure was performed using bovine bone graft and platelet-rich fibrin and collagen membrane obtained from the patient’s blood.The patient was followed up for 6 months. At the end of the follow-up period, a significant decrease in pocket depth and mobility, 5 mm clinical attachment gain and radiological bone filling were observed. GTR is an accepted regenerative approach applied in cases with appropriate indications. In this case, it has been shown that periodontal bone loss is increased clinically and radiographically with the use of relevant materials.

Keywords: bone graft, collagen membrane, regeneration