A new technique of periodontal flap surgery was performed on 5 patients with severe periodontal recessions of the upper or lower anterior teeth. The procedure begins with a thorough root and soft tissue scaling. For the surgical approach the periosteum was incised and mobilized at the apical part of the mucoperiosteum flap; it will further be used to cover the defect. The mucoperiosteum flap is then readapted and sutured. Prior to surgery the following clinical parameters were registered: sulcus bleeding index, periodontal probing depths, attachment loss and the height of the attached gingiva. Registrations of the same clinical features were made 3, and 12 months after surgery. Each clinical parameter registered an improvement following surgery. No sulcus bleeding was observed at any time during the postoperative follow-up. The evaluation after 12 months showed an average of 5.5 mm gingival reattachment and an average of 0.3 mm probing depth. The mean height of the attached gingiva was 0 mm before surgery, 2.3 mm at the 3 and 6 month evaluations and 2.2 mm after 12 months. The periosteum eversion technique is suitable for the treatment of gingival recessions, resulting in good gingival functions and the obvious improvement in appearance.