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

## TL;DR

A 940-nm laser reduced pain during dental injections in children aged 8-12, improving compliance.

## Contribution

Demonstrates the effectiveness of 940-nm laser photobiomodulation in reducing injection pain in children.

## Key findings

- Photobiomodulation reduced pain during inferior alveolar nerve block injections in children.
- Pain was measured using the Wong-baker scale and FLACC scale, showing significant improvement.
- Children aged 8-12 showed better compliance due to reduced pain perception.

## Abstract

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.