Sallum Enilson A, Nogueira-Filho Getúlio R, Casati Marcio Z, Pimentel Suzana Peres, Saldanha Juliana Bezerra, Nociti Francisco H
Department of Prosthodontics and Periodontics, Division of Periodontics, School of Dentistry at Piracicaba, State University of Campinas, São Paulo, Brazil.
Am J Dent. 2006 Apr;19(2):128-32.
To evaluate, histometrically, the healing of gingival recession treated by coronally positioned flaps (CPF) with or without acellular dermal matrix (ADM) as a subepithelial graft.
Gingival recessions were created on the upper cuspids of six dogs and were randomly assigned to: CPF+ADM (ADM group) or CPF alone (CPF group). After 4 months, the dogs were sacrificed, and the histometric measurements were performed.
The epithelial length was 2.28 + 0.92 mm and 2.10 + 0.46 mm for the ADM and CPF groups, respectively (P=0.74). The connective tissue adaptation was 0.05 + 0.08 mm for the ADM group and 0.06 + 0.08 mm for the CPF group (P=0.36). The new cementum was 2.35 + 1.55 mm and 2.90 + 0.96 mm in the ADM and CPF groups, respectively (P=0.53). The new bone was 0.60 + 1.36 mm for the ADM group and 0.35 + 0.82 mm for the CPF group (P=0.53). The gingival recession was -0.88 + 1.33 mm in the ADM group and -0.21 + 0.22 mm in the CPF group (P=0.21). The gingival thickness was 1.63 + 0.28 mm in the ADM group and 1.16 + 0.20 mm in the CPF group (P=0.002).
通过组织计量学方法评估采用冠向复位瓣（CPF）治疗牙龈退缩时，使用或不使用无细胞真皮基质（ADM）作为上皮下移植材料的愈合情况。
在6只犬的上颌尖牙处制造牙龈退缩，并随机分为：CPF+ADM组（ADM组）或单纯CPF组（CPF组）。4个月后，处死犬只并进行组织计量学测量。
ADM组和CPF组的上皮长度分别为2.28 + 0.92 mm和2.10 + 0.46 mm（P = 0.74）。ADM组的结缔组织贴合度为0.05 + 0.08 mm，CPF组为0.06 + 0.08 mm（P = 0.36）。ADM组和CPF组的新生牙骨质分别为2.35 + 1.55 mm和2.90 + 0.96 mm（P = 0.53）。ADM组的新生骨为0.60 + 1.36 mm，CPF组为0.35 + 0.82 mm（P = 0.53）。ADM组的牙龈退缩为-0.88 + 1.33 mm，CPF组为-0.21 + 0.22 mm（P = 0.21）。ADM组的牙龈厚度为1.63 + 0.28 mm，CPF组为1.16 + 0.20 mm（P = 0.002）。
