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Postoperative pain and associated factors in adolescent patients undergoing two-visit root canal therapy

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Abstract

This prospective study investigated the frequency and intensity of postoperative pain and identified associated factors in adolescents undergoing two-visit root canal therapy. Sixty-four patients aged 11 to 18 years old presenting with molars with pulp necrosis were assigned consecutively to two visits (plus an interappointment dressing using calcium-hydroxide paste). Pain intensity was recorded on a visual analogue scale (VAS) of 0–5. Data were analysed using multivariate logistic regression. The frequency of postoperative pain was 32.8% (21/64), with intensities of VAS 1 and VAS 2 in 81%, VAS 3 in 14.3% and VAS 4 in 4.7% of the 21 cases in which it was experienced. Spontaneous preoperative pain (odds ratio (OR) = 6.60; 95% confidence interval (CI) = 1.61–26.97; P = 0.009) and absence of apical perodontitis (OR = 5.65; 95% CI = 1.34–23.87; P = 0.01) were associated with postoperative pain. The frequency of postoperative pain was high, but the intensity, in general, was low, including flare-ups. The presence of spontaneous preoperative pain and absence of apical periodontitis increase the probability of suffering from postoperative pain.
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Keywords: adolescent; endodontics; pain; postoperative; pulp necrosis; root canal therapy

Document Type: Research Article

Affiliations: 1: School of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil 2: Department of Dental Clinic, School of Dentistry, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil 3: Institute of Studies of Public Health, Federal University of Rio de Janeiro, Rio de Janeiro, Brazil

Publication date: August 1, 2009

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