The most significant factor for the success in soft tissue grafts is the synergistic relation between vascular configuration and involved tissues. In the soft tissue graft procedures, site specific donor tissue is assumed to have improved potential for function and aesthetic survive at recipient sites. On a clinical level, using site specific gingival unit graft that placed on traditionally prepared recipient site, results in predictable root coverage. In this case report the clinical effectiveness of gingival unit transfer(GUT) technique performed on Miller Ⅲ recession was presented and a similar recession case treated with free gingival graft(FGG) technique for comparison. Probing depth, recession depth, keratinized tissue width and clinical attachment level clinical parameters were measured at baseline and postoperative 8 mo. Percentage of defect coverage was evaluated at postoperative 8 mo. Creeping attachment was assessed at postoperative 1, 3, 6 and 8 mo. The GUT revealed better defect coverage and creeping attachment results than the FGG in the treatment of Miller Ⅲ defects. The most significant factor for the success in soft tissue grafts is the synergistic relation between vascular configuration and involved tissues. In a soft tissue graft procedures, site specific donor tissue is assumed to have improved potential for function and aesthetic survive at recipient sites. On a clinical level, using site specific gingival unit graft that results in predictable root coverage. In this case report on the clinical utility of gingival unit transfer (GUT) technique performed on Miller III recession was presented and a similar recession case treated with free gingival graft (FGG) technique for comparison. Probing depth, recession depth, keratinized tissue width and clinical attachment level clinical parameters were measured at baseline and postoperative 8 months. Percentage of defect coverage was evaluated at postoperative 8 months. Creeping attachment was assessed at postoperative 1, 3, 6 and 8 mo. The GUT learned bette r defect coverage and creeping attachment results than the FGG in the treatment of Miller III defects.