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 - Souza, Sérgio Luis Scombatti de; Novaes Júnior, Arthur Belém; Grisi, Daniela Corrêa; Taba Júnior, Mário; Grisi, Márcio Fernando de Moraes; Andrade, Patrícia Freitas de (Journal of the International Academy of Periodontology, 2008)