IRCT2013052813501N1 IRCT 2014-12-16 Faculty Of Dentistry, Tehran University of Medical Sciences, Research department The effect of gingival graft by mucograft and autologous tissue graft that harvested from palate in the gingival tissue created in the same person The effect on the width of keratinized gingiva Mucograft prototype in comparison with the free gingival graft 2014-04-21 anticipated 12 Complete https://irct.ir/trial/13351 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Other, Purpose: Treatment, Other design features: This study will be held as a split mouth study which both surgical methods will be introduced simultaneously on one patient. 2-3 gingival recession and inadequate amounts of keratinized attached gingiva. The study, which will be split-mouth. Two surgeries will be done in a patient, on the one side Mucograft material and the other side using graft that will be harvested from the palate of the patient. first premolar will be selected as target for gingival transplant surgery by mucograft material or graft that harvested from the palatal. by the Bjorn technique surgery will be done .The size of the graft material in both site will be 10 x 20 mm and used 5 suture for tissue fixation.