Effect of photo-bio-modulation on pain perception with inferior alveolar nerve block among children: A split mouth study

Local anesthesia is crucial when it comes to pain relief in dental treatment. However, needle insertion often causes non-compliance in children. Therefore, it is of interest to assess the effect of 940-nm laser photobiomodulation on pain while administering inferior alveolar nerve block (IANB) among children between 8-12 years of age. Photobiomodulation pain was assessed using the Wong-baker faces pain rating scale, face, legs, activity, cry and consolability (FLACC) scale and pulse oximeter. Results show that photobiomodulation using a 940-nm laser reduced pain during injection of IANB in children between 8 to 12 years of age.