Comparative evaluation of efficacy of Buzzy and conventional technique in reducing pain and anxiety during Inferior Alveolar Nerve Block in children: A Split-Mouth Randomised Crossover Study

This is a single-blinded, randomised, split-mouth, crossover clinical trial comparing the efficacy of the BUZZY device and the conventional technique in reducing pain and anxiety during inferior alveolar nerve block (IANB) in children aged 8–10 years. A total of 44 healthy and cooperative children(88 sites) who require bilateral IANB for mandibular teeth extraction will be selected based on specific inclusion and exclusion criteria.

Participants will be randomly allocated to receive IANB with the BUZZY device in one visit and conventional IANB without the device in a crossover manner during the second visit after a two-week washout period. The primary outcome measures will include the percentage success of adequate anesthesia evaluated through subjective and objective signs 10 minutes after the injection, pain perception using the Wong-Baker Facial Rating Scale before and after the injection, behavioral response using the FLACC scale during the injection, physiological indicators of anxiety such as pulse rate measured preoperatively, intraoperatively, and postoperatively using a fingertip pulse oximeter. The secondary outcome includes the parental and child acceptance of the BUZZY device as a counterstimulation aid during local anesthesia.