Photobiomodulation in Pediatric Dentistry: A Current State-of-the-Art

Given the tremendous progress in biophotonics applications in biology and engineering, we sought to examine the evidence for the use of low-dose biophotonics treatments, termed photobiomodulation (PBM) therapy, in pediatric dentistry. PBM therapy has been noted to alleviate pain and inflammation while promoting tissue healing and regeneration. These basic processes contribute to the fundamental etiopathogenesis of various oral diseases, and hence, there is now a growing list of potential clinical applications with PBM therapy in children. An exhaustive literature search was conducted for PBM studies in pediatric dentistry that includes patients up to 21 years of age. An analysis of the quality of the included studies was also performed to evaluate the rigor of the evidence. Specific emphasis was placed on the treatment efficacy on the relevant specified outcomes for individual applications. From a total of over 420 initial hits, 19 studies were deemed suitable for inclusion in this review. Among them, PBM therapy has been used in pediatric dentistry for prevention and treatment of oral mucositis associated with oncotherapy (chemotherapy, radiation, and transplants), for postsurgical oral pain and for pulpotomies. Overall, all studies reported therapeutic benefits, and no adverse effects were reported. This review noted that PBM therapy is a safe and effective treatment modality for various clinical applications in pediatric dentistry. Despite potential positive publication bias, there appears to be clear evidence of clinical benefit with this treatment, and we recommend well-designed randomized, placebo-controlled human clinical trial be pursued.