Abstract
Objective The main purpose of this study was to evaluate pain symptoms in patients after endodontic
treatment performed in a single session in teeth with vitality or pulp necrosis, comparing
two depths of insertion of the NaviTip irrigation needle.
Materials and Methods One-hundred upper uniradicular teeth were selected and divided into four groups (n = 25), namely Bio group 1 (live pulp/1 mm from the foramen), Bio group 3 (live pulp/3
mm from the foramen), Necro group 1 (pulp necrosis/1 mm from the foramen), and Necro
group 3 (pulp necrosis/3 mm from the foramen). All canals were instrumented with Wave
One Gold System. Irrigation was performed using 2.5% NaOCl. The teeth were filled
using the single-cone technique with AH Plus sealer using a McSpadden compactor. After
treatment, patients answered a questionnaire with a visual analog scale scored from
0 to 10 at 1, 3, and 7 days after treatment.
Statistical Analysis Data were analyzed using Mann–Whitney U, Wilcoxon, and Friedman tests.
Results There was a decrease in average pain levels at the three time points for both vital
and necrotic teeth (p < 0.05). There were no significant differences in postoperative pain levels comparing
needle depth, or vitality and pulp necrosis (p > 0.05). The percentage of mild pain increased over time and moderate pain decreased,
regardless of pulp condition. There was no incidence of acute pain at any time.
Conclusions Post-treatment endodontic pain levels in upper uniradicular teeth with or without
pulp vitality resulted in similar pain scores, regardless of the depth of insertion
of the irrigation needle in relation to the apical foramen.
Keywords
postoperative pain - insertion - needle - irrigation - single session
