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Comparative clinicoradiologic research study of the tunnel plastics of multiple gingival recessions with Autograft and Xenogen Collagen matrix

Vedyaeva A.P., Brailovskaya T.V., Tarasenko S.V., Bulkina N.V., Garibian E.A., Nebylitsin I.V.


Aim: To compare the efficacy of gingival recession surgery using a tunnel surgery technique with connective tissue autograft and xenogenic collagen matrix Mucoderm. Material and methods: The article presents the results of a comparative clinicoradiologic analysis of the use of autograft and xenogenic collagen matrix Mucoderm in the tunnel technique of gingival recession treatment. Examination and treatment of 10 patients (6 women, 4 men) aged 35 ± 8.7 years with a diagnosis of generalized gingiva recession, Miller class 2, and with a thin phenotype were performed. Recessions occurred in the area of 49 teeth on the upper and lower jaws. Results: clinical results of root coverage using autograft achieved 99%, and 81% using the xenogeneic collagen matrix Mucoderm. The width of the keratinized attached gingiva for group 1 (autograft) and group 2 (Mucoderm) ranged 0.9 ± 0.44 mm and 1.14 ± 0.2 mm respectively. One month past the surgery with an autograft, it was 4.8 ± 1.1 mm, and by the sixth month it reached a stable value of 3,9 ± 0.8 mm and in comparison, with the values ‚Äčof the group 2 where Mucoderm was used, it was 3.6 ± 0.4 mm and 2.4 ± 0.3 mm respectively. The original thickness of the keratinized attached gingiva of 0.9 ± 0.12 mm, when using connective tissue autografts for the patients’ group 1, increased to 2.4 ± 0.4 mm in a month of the treatment and remained stable by the sixth month being 1.85 ± 0.3mm, as for the patients’ group 2 by the first and sixth months of the treatment it was 2 ± 0.3 mm and 1.5 ± 0.26 mm respectively. Conclusions: The use of the Mucoderm collagen matrix showed statistically significant clinicoradiologic results for class 2 gingival recession coverage for the thin mucous phenotype at long-term dates compared to the “gold standard” of autograft gingival surgery.

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