Evaluation of the Effectiveness of Collagen Membrane in the Management of Oro-Antral Fistula/Communication - A Clinical Study

Abstract

Background: The opening adjoining maxillary sinus with the oral cavity is termed as Oroantral Communication (OAC) which when left untreated leads to oroantral fistula or maxillary sinusitis. Surgical closure within 48 hours is recommended for OAC to circumvent complications like sinus infections. The current study is designed to evaluate collagen membranes for the treatment of OACs which was reported as a safe and easy procedure. Method: The study was conducted with the patients who needed the management for Oroantral Fistula/Oroantral Communication (OAF/OAC) which developed following the posterior maxillary tooth removal. To cover OAF/OAC with a collagen membrane, Bio-Gide (GTR/GBR Collagen Membrane) was inserted in the socket. The particular membranes were then attached using sutures to the adjoining gingiva, and medication like Amoxicillin 500 mg, Metronidazole, nasal decongestant drops and steam inhalation were prescribed for one week to each patient. After day 7, sutures were removed. Patients were checked following the first, third, six weeks and third month. Data were statistically analyzed and an Independent T-test was performed. Results: All the patients accepted Bio-Gide (GTR/GBR Collagen Membrane) perfectly, soft tissue was recovered completely without any problem. Soft tissue was completely epithelialized in the defective area for all the samples. No relapse was reported in any of the patients following a 3- month follow-up. Conclusion: Bio-Gide (GTR/GBR Collagen Membrane) technique is simple and effective for treating OACs with a diameter of 5 mm or less and with negligible complication.