IRCT20151128025265N4 IRCT 2021-06-23 Shahid Beheshti University of Medical Sciences Effects of low power laser after maxillofacial surgery Evaluation of the effects of low power laser on temporomandibular joint after maxillofacial surgery 2021-11-05 anticipated 36 Complete https://irct.ir/trial/55536 interventional Randomization: Randomized, Blinding: Not blinded, Placebo: Not used, Assignment: Parallel, Purpose: Treatment, Randomization description: Patients with mandibular protrusion after cosmetic reconstructive surgery were selected by simple and available sampling and randomly divided into two groups: intervention (n: 18) and control (n: 18). In this study, for random allocation, the coin tossing method was used in such a way that one group is considered a lion and one group is considered a line and people are randomly divided into two groups according to the number of taps and lines. N/A the effects of laser on Temporomandibular joint. Intervention 1: Intervention group: The patient was lying down in the dental unit in a state of physical and mental relaxation. The irradiation site was considered as 5 points on the operation line to reduce pain and swelling and 5 points on the joint to increase movement. The laser probe was sterilized with an alcohol swab in each session and each time it was used. The approximate duration of each session was about 20 minutes. The number of sessions was 10 sessions in two weeks. Intervention 2: Control group: Laser device off. Undecided - It is not yet known if there will be a plan to make this available Justification or reason for indecision in sharing IPD is Study participants should be interviewed and given permission