Application of photobiomodulation as an adjuvant in the control of acute pain associted with orthodontic treatment of retained canine: A case report

Abstract

Introduction. Impacted permanent canines are a common dental condition that affects function and aesthetics. Their orthodontic traction generates acute pain, a constant challenge. Therefore, the use of low-level laser therapy (photobiomodulation) is explored as a tool to reduce this discomfort associated with orthodontic mechanics. The objective is to validate the technique for its incorporation into the standard clinical care protocol and optimize patient comfort by demonstrating the effectiveness of low-level laser therapy in reducing acute pain in pediatric patients undergoing canine traction. Case presentation: A 10-year-old female patient, diagnosed with Class I malocclusion, whose treatment included extractions of the first premolars (14, 24, 34, and 44) and previous use of maxillary expansion appliances, specifically Hyrax appliances. The study focused on the traction phase of the impacted canine 23, applying photobiomodulation as an adjunct therapy during the initial orthodontic appointments when traction mechanics were performed. Its application was discontinued in subsequent appointments to establish a comparison of the acute pain response in both scenarios. Conclusion: The application of photobiomodulation resulted in less reported discomfort without affecting dental integrity. Therefore, it is concluded that the application of low-power laser is an effective adjunct in the orthodontic traction phase.