Comparative Evaluation of Coronally Advanced Flap with and without Chorionic Membrane in the Treatment of Isolated Gingival Recession: A Randomized Controlled Trial.

Gingival recession is the “apical migration of the gingival margin below the cemento-enamel junction (CEJ).†It is a multifactorial disease commonly caused by the accumulation of plaque biofilm resulting in inflammatory periodontal diseases and due to trauma caused by faulty and aggressive tooth brushing.  The coronally advanced flap (CAF) is a commonly used method for root coverage, and it has demonstrated very good results in treating gingival recessions regarding root coverage and esthetic outcomes. They possess antimicrobial and antibacterial properties and have shown to reduce inflammation and provide a protein-rich matrix, thereby facilitating the migration of cells at the defect area. Yadav K et al in 2015, concluded that, Chorionic membrane provides an effective alternative to autograft tissue in the treatment of shallow-to-moderate Miller’s Class I and II recession defects. In addition, the self adherent nature of the amniotic membrane significantly reduced surgical time and easier to perform. Chorion membrane has shown to reduce scar formation and inflammation, enhancing healing of the wound. Its matrix contains growth factors such as keratinocyte growth factor, basic fibroblast growth factor, and transforming growth factor-b, which help in regenerating the periodontium and gives a setting for faster healing.