IRCT20170916036203N3 IRCT 2018-05-04 Tehran University of Medical Sciences dimensional change in gingival graft ,scalpel versus graft Dimensional changes in free gingival grafts: scalpel versus Er:YAG laser--an rct study 2017-09-23 anticipated 10 Complete https://irct.ir/trial/30819 interventional Randomization: Randomized, Blinding: Double blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: simple individual randomization by sealed envelops, Blinding description: In this study, participant,and data collectors are blind to the study. on the day of surgery the patients will receive the laser light on both side ,but on control side without energy and on the test site the patients will receive energy.on the fallow up visits a person that is blind to the study will record the data. N/A Dimensional changes in gingival graft after 6 months. Intervention 1: Intervention group: In these patients, the receptor bed of graft is prepared bye Er: cr: YSGG laser ( manufactured by the United States Biolase company with 2 watts, 50Hz, 60% water and 30% air). In the second stage, which is similar between the two groups, the free gingival graft is harvested from the palatal area and then sutured with nylon 0-4 thread. Intervention 2: Control group: In these patients, the receptor bed of the graft is prepared by the common method, which is the blade (No. 15). In the second stage, which is similar between the two groups, free gingival graft is harvested from the palatal area and is sutured with nylon 0-4 thread. Yes - There is a plan to make this available What will be shared: Participants' data will be shared after they are unidentified. When: Access to data will be available after the publication of the article. To whom: Data will be available to researchers inside and outside the university Conditions: All data and analyzes are available on referral terms Where to obtain: To access, please contact Hamed Rahimi at the email address hamedr2003@yahoo.com. How to obtain: After sending a request by email, within a week, data will be shared Comments: