Soft tissue augmentation of ridge defects in the maxillary anterior area using two different methods: a randomized controlled clinical trial

摘要: OBJECTIVES: To test whether or not vascularized interpositional periosteal-connective tissue grafts are as successful free subepithelial connective in augmenting volume defects the anterior maxilla. MATERIAL AND METHODS: Twenty subjects with Seibert class 1 ridge maxilla were randomly, equally assigned to augmentation by graft (test) (control). Clinical periodontal parameters at teeth adjacent gap recorded, and conventional impressions taken prior surgery (baseline = t0 ) (t1 ), 3 (t3 6 (t6 months after surgery. The casts optically scanned, digitized analyzed for contour changes augmented area. Data subjected nonparametric statistics. RESULTS: labial distance between baseline follow-up control group (median, range) 1 mm, 0.37-1.45 (t0 -t1 ); 1.18 mm, 0.39-1.40 -t3 0.63 mm, 0.28-1.22 -t6 1.21 mm, 0.74-2.47 1.26 mm, 0.50-1.71 0.16-1.75 ). Significantly less shrinkage of was observed 6 months (P = 0.03). neighboring stable over period did differ groups. CONCLUSIONS: Augmentation single tooth gaps moderate successfully performed using both techniques. However, 6 months, sites treated pediculated superior maintaining initially showed graft. This could be attributed better perfusion