Comparative clinical study of a subepithelial connective tissue graft and acellular dermal matrix graft for the treatment of gingival recessions: six- to 12-month changes.
Different techniques have been proposed for the treatment of gingival recession. This study compared the clinical results of gingival recession treatment using a subepithelial connective tissue graft and an acellular dermal matrix allograft. Seven patients with bilateral Miller class I or II gingival recession were selected. Twenty-six recessions were treated and randomly assigned to the test group. In each case the contralateral recession was assigned to the control group. In the control group, a connective tissue graft in combination with a coronally positioned flap was used; in the test group, an acellular dermal matrix allograft was used as a substitute for palatal donor tissue. Probing depth, clinical attachment level, gingival recession, and width of keratinized tissue were measured two weeks prior to surgery and at six and 12 months post-surgery. There were no statistically significant differences between the groups in terms of recession reduction, clinical attachment gain, probing pocket depth, and increase in the width of the keratinized tissue after six or 12 months. There was no statistically significant increase in the width of keratinized tissue between six and 12 months for either group. Within the limitations of this study, it can be suggested that the acellular dermal matrix allograft may be a substitute for palatal donor tissue in root coverage procedures and that the time required for additional gain in the amount of keratinized tissue may be greater for the acellular dermal matrix than for the connective tissue procedures.
de Souza
Sérgio Luís Scombatti
SL
Department of Bucco-Maxillo-Facial Surgery and Traumatology and Periodontology, School of Dentistry of Ribeirão Preto, University of São Paulo, Av. do Café, s/n, CEP 14040-904, Ribeirão Preto, SP, Brasil. scombati@forp.usp.br
Novaes
Arthur Belém
AB
Grisi
Daniela Corrêa
DC
Taba
Mário
M
Grisi
Márcio Fernando de Moraes
MF
de Andrade
Patrícia Freitas
PF
D000328:Adult; D001672:Biocompatible Materials / Q000627:therapeutic use*; D003094:Collagen / Q000627:therapeutic use*; D003238:Connective Tissue / Q000637:transplantation; D005260:Female; D005500:Follow-Up Studies; D005881:Gingiva / Q000473:pathology / Q000637:transplantation*; D005889:Gingival Recession / Q000145:classification / Q000601:surgery*; D006801:Humans; D008297:Male; D008875:Middle Aged; D017622:Periodontal Attachment Loss / Q000145:classification / Q000601:surgery; D010514:Periodontal Pocket / Q000145:classification / Q000601:surgery; D013524:Surgical Flaps; D014092:Tooth Root / Q000473:pathology / Q000601:surgery
C440568:Alloderm; D001672:Biocompatible Materials; D003094:Collagen