Comparison of postobturation pain experience following apical extrusion of calcium silicate- and resin-based root canals sealers.

Abstract

INTRODUCTION\nThis study compared the intensity of postobturation pain following unintentional apical extrusion of calcium silicate-based root canal sealers - BC Sealer (Brasseler USA, USA), and Bio-C Sealer (Angelus, Brazil) - with a resin-based sealer - AH Plus (Dentsply Sirona, USA).\n\n\nMETHODS\nA total of 330 patients referred for root canal treatment on molar teeth with asymptomatic irreversible pulpitis were recruited. Root canals were prepared using WaveOne Gold instruments in a crown-down technique and irrigated with 2% chlorhexidine gel and saline solution. Next, patients were randomly distributed in 3 groups, according to the root canal sealer used (n=110): AH Plus, BC Sealer and Bio-C Sealer. Root canal filling was then accomplished with a vertical compaction technique. Patients presenting with an unintentional extrusion of sealers (n=13/group) were assessed for postobturation pain experience using a visual descriptor scale ranging from 0-10 at 6-hours, 12h, 24h, 48h, and 1 week-intervals after treatment. Mixed ANOVA repeated measures were used to assess the results (α=0.05).\n\n\nRESULTS\nExtrusion rate was similar for all sealers (∼12%). There was no significant difference in the postobturation pain results between the root canal sealers evaluated (p>0.05). However, after the time interval of 12h, AH Plus (p=0.04073) and Bio-C Sealer (p=0.04327) demonstrated significant reduction in pain, whereas BC Sealer did not show differences in pain intensity, even in the maximum period evaluated of 1 week (p>0.05).\n\n\nCONCLUSION\nThe occurrence of unintentional apical extrusion of calcium silicate-based root canal sealers presents similar postoperative pain results compared to resin-based sealers with low intensity pain.