title: Recession defects associated with scraped roots treated with subepithelial connective tissue graft.
abstract: The objective of the current study was to assess histomorphometrically the healing process of recession defects associated with scraped roots treated with subepithelial connective tissue graft (SCTG). Six dogs were used. Bone dehiscence defects (6 × 8 mm) and root planing were carried out on maxillary canine teeth. Following a split-mouth model, according to the treatment, left canines (control) were covered with coronally positioned flap (CPF). Right canines were submitted to treatments with SCTG. After a 3-month postoperative period, the animals were killed, and the blocks processed for the histomorphometric assessment. Data assessment demonstrated that the CPF group showed parameters of a new connective tissue attachment, length of new cement (NC), length of new bone (mean ± SD: 0.95 ± 0.53, 2.44 ± 1.97, and 1.96 ± 2.29 mm, respectively), which were higher than those of SCTG group (mean ± SD: 0.71 ± 0.36, 2.21 ± 1.28, and 1.52 ± 1.31 mm, respectively), although not significantly (P > 0.05). The length of both epithelial tissue and connective tissue apposition in the SCTG group (mean ± SD: 1.70 ± 0.53 and 2.62 ± 1.52 mm, respectively) were higher than those of the CPF group (mean ± SD: 1.18 ± 0.49 and 2.03 ± 1.03 mm, respectively), although showing no significant differences (P > 0.05). Within the limits of the current study, it was possible to conclude that there were no significant differences between the groups according to the histologic parameters assessed.
authors: Division of Periodontics, Department of Surgery and Integrated Clinic, UNESP–Univ Estadual Paulista, Araçatuba, São Paulo, Brazil.
authors: Thiago Marchi
authors: TM
authors: Martins
authors: Alvaro Francisco
authors: AF
authors: Bosco
authors: Valdir Gouveia
authors: VG
authors: Garcia
authors: Maria José Hitomi
authors: MJ
authors: Nagata
authors: Leandro Araújo
authors: LA
authors: Fernandes
authors: Ana Cristina
authors: AC
authors: Murakawa
authors: Edilson
authors: E
authors: Ervolino
mesh_terms: D000818:Animals; D003238:Connective Tissue / Q000637:transplantation*; D003481:Cuspid; D004285:Dogs; D005889:Gingival Recession / Q000601:surgery*; D005893:Gingivoplasty / Q000379:methods*; D008297:Male; D016745:Root Planing; D013524:Surgical Flaps