Comparative evaluation of biodegradable collagen membrane and platelet-rich fibrin with subepithelial connective tissue graft in the treatment of miller′s class i and ii gingival recession defects: A randomized controlled study

Abstract

Aim: To compare the clinical outcomes of a biodegradable collagen membrane (BCM) and platelet-rich fibrin (PRF) with subepithelial connective tissue graft (SCTG) in the treatment of Miller's class I and II gingival recession defects. Background: Gingival recession is a term that refers to the oral exposure of the root surface due to displacement of the gingival margin apical to the cement-enamel junction. PRF is known to contain growth factors that stimulate cellular proliferation and differentiation. Materials and Methods: Fifteen patients who contributed 30 recession defects were included in the study. Recession defects were treated randomly either by BCM and PRF or by SCTG. Clinical variables were recorded at baseline, and 3, 6, and 9 months postoperatively. Statistical Analysis: Gingival index, plaque index, recession depth, recession width, width of keratinized gingival, probing pocket depth (PPD), and clinical attachment level were analyzed statistically using repeated measures analysis of variance at baseline, and 3, 6, and 9 months postoperatively for both the groups. Paired t -test was used to compare the clinical parameters between the groups. Data were analyzed using the statistical software Statistical Package for Social Science version 17.0 and MS Excel. Results: Both the groups experienced a statistically significant gain in clinical attachment level and percentage of root coverage. Conclusion: Nine months postoperative results showed that both approaches were equally effective for the treatment of Miller's class I and II gingival recession defects.