Root coverage using coronally advanced flap with porcine-derived acellular dermal matrix or subepithelial connective tis
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ORIGINAL ARTICLE
Root coverage using coronally advanced flap with porcine-derived acellular dermal matrix or subepithelial connective tissue graft: a randomized controlled clinical trial Kleber Tanaka Suzuki 1 & Cristhiam de Jesus Hernandez Martinez 1 & Milena Irie Suemi 1 & Daniela Bazan Palioto 1 & Michel Reis Messora 1 & Sérgio Luis Scombatti de Souza 1 & Arthur Belem Novaes Jr 1 & Flavia A. Chaves Furlaneto 1 & Mario Taba Jr 1 Received: 6 January 2020 / Accepted: 8 April 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract Objective The aim of this study is to investigate the use of a porcine-derived acellular dermal matrix (MD) in root coverage procedures combined with extended coronally positioned flap (eCAF), in comparison to the subepithelial connective tissue graft (SCTG) associated with the eCAF. Material and methods Eighteen adult patients presenting bilateral type 1 gingival recession were randomly assigned to SCTG or MD groups. Clinical and patient-based outcomes were recorded at 3 and 6 months after the surgical procedure. Results Both groups showed a significant reduction in the mean recession height of 3.33 ± 0.89 mm to 1.24 ± 1.10 mm (MD) and 3.21 ± 0.8 mm to 0.83 ± 0.86 mm (SCTG) without difference between groups. Six patients in the test group and eight in the control group obtained complete root coverage. The keratinized tissue height and thickness (KTT) showed a significant increase after 3 and 6 months in both groups. The average KTT gains were 0.39 ± 0.4 mm (MD) and 0.51 ± 0.5 mm (SCTG) (p < 0.05). Performing multivariate analysis suggests that MD addition to coronally advanced flaps may be similar to SCTG. Conclusion The MD had similar results in comparison to SCTG and in the context of reducing patient morbidity it can be used as an alternative for the treatment of gingival recessions. Clinical relevance The SCTG is the gold standard therapy for root coverage. The MD has been widely used in mucogingival surgery as a substitute for SCTG and proposed similar results. A substitute is very important for clinicians and patients. It will give a better postoperative and possibilities to treat multiples recession. (Clinicaltrials.gov Identifier: NCT03675334). Keywords Biomaterial . Tissue engineering . Regeneration . Clinical trials
Introduction Over the years, numerous techniques to treat gingival recessions have been developed for even more predictable results. Among them, there are free gingival graft, rotated and advanced flaps, and double papilla flap, as well as subepithelial connective tissue graft associated with coronally advanced Kleber Tanaka Suzuki and Cristhiam de Jesus Hernandez Martinez contributed equally to this work. * Mario Taba, Jr [email protected] 1
Department of Oral & Maxillofacial Surgery, and Periodontology, School of Dentistry of Ribeirão Preto, University of Sao Paulo, Av. do Cafe, s/n, Ribeirão Preto, São Paulo CEP: 14040-904, Brazil
flap which has been described by several authors as the gold standard for root coverage [1–3]. However, the use of s
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