The Effect of Photobiomodulation on the Depth of Anesthesia During Endodontic Treatment of Teeth With Symptomatic Irreversible Pulpitis (Double Blind Randomized Clinical Trial)

Abstract

The results of this study showed that the necessity for supplemental injection was lower in the group receiving laser than in the group without laser (<i>P</i> = 0.033). The mean pain intensity during dentin cutting was lower in the group receiving laser than in the group without laser (<i>P</i> = 0.031). Also, the mean pain intensity during pulp dropping was lower in the group receiving laser, than the group without laser (<i>P</i> = 0.021). <b>Conclusion:</b> Based on the results of this study, it seems that the application of PBM before anesthesia is effective on increasing depth of anesthesia.