ĐÁNH GIÁ KẾT QUẢ PHẪU THUẬT ĐIỀU TRỊ VIÊM NHA CHU MẠN TÍNH BẰNG VẠT WIDMAN CẢI TIẾN TẠI BỆNH VIỆN TRƯỜNG ĐẠI HỌC Y DƯỢC CẦN THƠ

Abstract

Background: The improved Widman flap (Ramfjord and Nissle, 1974) was designed to assist in the removal of the epithelium lining the gingival pocket. Reduces gingival pocket depth by removing a rim of tissue of the gingival contour. The exposure of the root surface is minimized, the gum recession is overcome after treatment compared to other types of flaps, there is less dentin sensitivity and reduced root surface decay. Objective: To evaluate the surgical results of chronic periodontitis with the improved widman flap. Research object and method: Time and location of the study Patients with chronic periodontitis came for examination and treatment at the Department of Odonto-Stomatology, Can Tho University of Medicine and Pharmacy, from June 2018 to April 2020. Patient was diagnosed with chronic periodontitis (according to Flemming 1999), good general health, no contraindications to surgery, age >18 years. After initial treatment, there was at least one periapical supporting tissue lesion with gingival inflammation and bleeding on exploration, periodontal pocket ≥5 mm deep, clinical attachment loss ≥3 mm, and imaging Alveolar bone lesions are evident on radiographs. Agree to participate in the study. Results: The mean reduction in periodontal pocket depth was 1.25 mm after 3 months and 1.86 mm after 6 months. The average adhesion recovery after 3 months was 1.14mm and after 6 months was 1.78mm. These differences were all statistically significant between the time points of the assessment. The level of receding gums in different pocket depth groups changed with an average value of 1.25mm before treatment, after 3 months of surgical treatment, the level of gingival recession was 1.35mm, after 6 months it was 1.41m, this change is statistically significant. The reduction of pocket depth achieved good results after 3 months of treatment with 92 teeth accounting for 42.6% and increased to 131 teeth (60.6%) after 6 months. Clinical adhesion recovery also increased from 63 (29.2%) at 3 months after surgery to 117 teeth (54.1%) after 6 months of treatment. Conclusion: Treatment of periodontitis with the improved Widman flap technique has brought about very good results such as reduction of periodontal pocket depth, restoration of adhesions and changes in other clinical and paraclinical indicators. .