Evaluation of the Clinical Efficacy of Collagen Membrane in Combination with Bone Grafts in the Treatment of Miller's Class I/II Marginal Tissue Recession: a Case Report

The aim of this clinical trial was to evaluate the clinical effectiveness of a collagen barrier along with an alloplastic bone graft in the treatment of gingival recession defects. Two patients having Miller's Class I or Class II recession defects participated in the study. One was treated with a collagen membrane covered by a coronally positioned flap. Second patient also had bone graft placed beneath the membrane. Clinical parameters were recorded. Patients were followed postoperatively and healing was evaluated at 1, 3 and 6 months, with recession depth as the primary criteria for assessment. This case report revealed a favorable tissue response to bone graft and collagen membrane from both clinical and esthetic point of view in the treatment of gingival recession. Root coverage tended to be better with the addition of bone graft.