Marginal tissue recession related to periodontal disease or tooth mal-position, such as facially prominent tooth can cause to root sensitivity, root caries, and esthetically unacceptable root exposures. Accordingly, marginal tissue recessions were treated by root coverage procedures in order to improve these problems, and predictable clinical results have been reported significantly. However, it had been considered that the root coverage for facially prominent tooth was difficult to obtain the adequate clinical results because of as disadvantage. The purpose of this study was to demonstrate the efficacy of root coverage technique utilizing the combination of GTR and subepithelial connective tissue graft in the treatment of marginal tissue recession of facially prominent exposed root. Bilateral maxillary canines that prominent facially with deep and wide marginal tissue recession were utilized in this study. This procedure was started on the reflected full thickness flap, then e-PTFE membrane was placed over the exposed root surface. The flap was extentional replaced to coronally in the situation of cover the membrane. Six weeks after the surgery, the flap was reopened for the purpose of remove the e-PTFE membrane. This procedure then continue the subepithelial connective tissue from the donor site at palate was grafted onto the newly formed tissue covering the exposed root. The periodontal parameters of the results were measured 12 months later. In the results, the probing attachment gain of 5.5mm in the right, and 4.5mm in the left side were measured. The keratinized tissue was obtained increasing of 4.5mm in the right, and also increasing of 3.0mm in the left side. And the exposed root surfaces were completely covered with sufficient keratinized tissue. This results suggested that it is significant predictable procedure for the case of marginal tissue recession with facially prominent exposed tooth.