Assessment of VibraJect and DentalVibe Comfort Systems Efficacy in Relieving of Pain Associated with Local Injection in Children

Objective: This study was directed to compare the efficacy of VibraJect (VJ) and DentalVibe (DV) comfort systems and Topical anesthesia (TA) (20% benzocaine) in relieving of pain associated with local injection in children. Subjects and methods: This study was conducted as a prospective blind randomized controlled clinical trial. A total of 150 children, who were attending dental treatment in the pediatric dental clinic, were selected. Subjects were equally divided according to used method into three groups (50 each). Fifty Subjects received into local anesthetic injections with VJ; fifty subjects received into local anesthetic (LA) injections with DV comfort system; fifty subjects received into local anesthetic injections with TA. Pain during injection was evaluated subjectively using Wong-Baker FACES pain rating scale by showing the scale to the child and asking him/her to choose a face that best described his/her feeling. Pain also had been objectively evaluated using face, leg, activity, cry and consolability (FLACC) scale by observing the child behavior during anesthesia administration. Results: This study revealed that vibration applied using the VJ and DV decreased pain associated with a LA injection delivered via infiltration and nerve block. Subjects in the VJ and DV groups had significantly lower pain scores than those in the control (TA) group. Conclusion: In this study, VJ and DV reduced pain during LA injection without causing anxiety in comparison to conventional injection.