Comparative evaluation of the efficacy of xenogeneic collagen matrix and platelet-rich fibrin in the treatment of gingival recession

The main focus of the study is to determine the difference between the efficacy of xenogeneic collagen matrix (XCM) versus platelet-rich fibrin (PRF) adjunct to coronally advanced flap to treat the gingival recession.Because of esthetic concerns or root hypersensitivity, typical necessity dictates for buccal gingival recession treatment. This study was planned to evaluate and compare the efficacy of XCM with PRF in the treatment of the recessed gingiva.Thirty-four sites with Cairo's RT1 and RT2 gingival recessions were taken, out of which 17 sites received XCM (test) and 17 sites received PRF (control). A periodontal treatment was performed first, followed by a re-evaluation. All clinical measurements, including recession height (RH), recession width (RW), clinical attachment level (CAL), keratinized tissue width, and keratinized tissue thickness, were taken before surgery (baseline) and at a 6-month interval following periodontal surgery. Landry's healing index was also measured at the 1st and 2nd weeks after surgery.None of the acquired data implies a significant difference statistically for CAL, RW, RH, thickness, and width of keratinized tissue (WKT) at 6-month interval between both the groups. Comparison of healing at the 1st and 2nd week intervals among both the groups showed no statistical significance. No significant difference among both Groups A and B was seen according to the intergroup analysis in terms of periodontal parameters such as CAL (P = 0.374), RW (P = 0.542), RH (P = 0.890), WKT (P = 0.877) and thickness of keratinized tissue (P = 0.547), and Landry's healing index (P = 0.429).In consideration of the patient's comfort and the method's simplicity, it can be concluded that PRF or XCM can be employed as an alternative.