POSTOPERATIVE PAIN EXPERIENCED BY PATIENTS TREATED WITH 810NM DIODE LASER AGAINST CONVENTIONAL ENDODONTIC THERAPY IN NECROTIC PULP AND CHRONIC PERI-APICAL LESION: A RANDOMIZED CONTROL TRAIL

Abstract

Usual endodontic treatments may lead to post-treatment pain. The recent advance of laser use to reduce post-op pain, its efficacy and accuracy is still unknown. Therefore, this study has been conducted to assess the post-operative pain in patient undergoing laser vs conventional endodontic treatment in necrotic teeth with apical lesions. Fifty patients having necrotic pulp in maxillary centrals incisors with chronic periapical lesions were randomly divided into two groups (n = 25). All patients were treated with two visits of conventional root canal treatment with ProTaper Universal. In experimental group root canals were irradiated with 200 ?m fiber optic at both visits; in the control group the diode laser fiber was placed in root canal with no activation acting as placebo. Results suggested post-operative pain reduced gradually and significantly from six hours to 48 hours and no pain at all after seven days in both groups. The pain scores between experimental and control groups showed statistically significant difference after six hours, 12 hours and 24 hours (p= 0.03, p= 0.02 and p= 0.018 respectively). In conclusion, Diode laser disinfection in the range of 810 nm of root canal can reduce the postoperative pain experienced after conventional root canal treatment in cases of necrotic teeth with periapical lesions