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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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