Efficacy of Photobiomodulation Therapy for Orthodontic Pain Control Following the Placement of Elastomeric Separators: A Randomized Clinical Trial

Journal of Lasers in Medical Sciences

article

Amirhossein Mirhashemi¹  Reza Rasooli²  Shiva Shahi³  Nasim Chiniforush⁴ 

[1] Orthodontic Department, School of Dentistry, Tehran University of Medical Sciences, International Campus;Department of Orthodontics, School of Dentistry, Shahed University of Medical Sciences;School of Dentistry, Tehran University of Medical Sciences, International Campus;Dental Implant Research Center, Dentistry Research Institute, Tehran University of Medical Sciences

关键词: Orthodontics;    Pain;    Separator;    Photobiomodulation therapy;    Diode;    Low-level lasertherapy;   

DOI  :  10.34172/jlms.2021.08

学科分类：基础医学

来源: Shahid Beheshti University of Medical Sciences

【 摘 要 】

Introduction: Controlling pain in orthodontic patients has gained special attention. This studyassessed the efficacy of photobiomodulation therapy (PBMT) for pain control following theplacement of elastomeric separators.Methods: This split-mouth single-blind randomized clinical trial evaluated 30 orthodontic patientswho required posterior elastomeric separators. The two maxillary quadrants were randomized intothe laser and control groups. In the laser quadrant, an 808 nm diode laser (400 mW, 15.60 J/cm2,11 seconds, continuous-wave, contact mode) was irradiated to the cervical third of the maxillaryfirst molar roots 24 hours prior to the placement of separators. The control quadrant receivedplacebo radiation by a light-curing unit. The patients received the second laser cycle right beforethe placement of separators 24 hours later. The level of self-perceived pain was recorded at 0, 2, 6,24, and 72 hours and 5 days after the intervention in the laser and control quadrants using a visualanalog scale (VAS). Data were analyzed using the analysis of variance (ANOVA) and paired-samplest test.Results: The trend of change in the pain score was similar in both groups. The pain score wassignificantly lower in the laser group than the control group at all-time points (P<0.05) except attime 0. The pain score increased in the first 6 hours and reached its maximum level in 24 hours inboth groups.Conclusion: PBMT by an 808 nm diode laser can effectively decrease pain following the placementof elastomeric separators.

【 授权许可】

CC BY