The Effect of Laser Diode 940 nm on Decreasing Oropharyngeal Pain After Bimaxillary Orthognathic Surgery: A Double-Blind Randomized Trial Study

Background: Due to its invasiveness and length, bimaxillary orthognathic surgery causes highly excruciating pain in the oropharyngeal area for patient. There are several ways reduce this pain, including prescribing painkillers anti-inflammatory drugs. The aim of study was evaluate effect photobiomodulation by a 940-nm laser on reducing after surgery. Methods: This randomized clinical trial performed 40 patients aged 17-40 years who were candidates referred Department Oral Maxillofacial Surgery Besat hospital 2021. All intervention group underwent with diode immediately end Sore throat, jaw when swallowing, stridor recorded first fifth days Finally, changes mean score indices compared within between two groups using repeated measure analysis variance. Results: age control 22.4±4.38 25.15±5.48 years, respectively (P=0.09). four areas studied both had decreasing trend over time, which statistically significant (P<0.001). In addition, difference so that group, more severe (P<0.05). Eventually, interaction observed type time all Conclusions: results showed use led reduction sore