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Quintessence Publishing: Journals: OFPH
Journal of Oral & Facial Pain and Headache

Edited by Barry J. Sessle, BDS, MDS, BSc, PhD, FRSC

Official Journal of the American Academy of Orofacial Pain,
the European, Asian, and Ibero-Latin Academies of Craniomandibular
Disorders, and the Australian Academy of Orofacial Pain

ISSN 2333-0384 (print) • ISSN 2333-0376 (online)

Publication:
Spring 2013
Volume 27 , Issue 2

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Seven-Year Follow-up of Patients Diagnosed with Atypical Odontalgia: A Prospective Study

Maria Pigg, DDS, PhD/Peter Svensson, DDS, PhD/Mark Drangsholt, DDS, PhD/Thomas List, DDS, PhD

Pages: 151-164
PMID: 23630687
DOI: 10.11607/jop.1033

Aims: To examine the long-term prognosis of 46 previously examined atypical odontalgia (AO) patients. Methods: In 2002 and 2009, AO patients completed validated instruments measuring pain characteristics (pain frequency and intensity), physical functioning (Graded Chronic Pain Severity, GCPS) and emotional functioning (Symptoms Checklist, SCL-90R). The main outcome was global improvement. Baseline data on quantitative somatosensory testing and responsiveness to lidocaine injection were available for a subgroup of patients. Paired tests compared baseline and follow-up data, and logistic regression explored the possible prognostic value of baseline data. Results: Data from 37 patients (80%) were obtained. Thirteen patients (35%; 95% confidence intervals [CI] 20.2%52.5%) rated their overall pain status as significantly improved, 22 (60%; 95% CI 42.1%75.3%) as a little improved or unchanged, and two patients (5%; 95% CI 0.7%18.2%) as worse. Five patients (14%; 95% CI 4.5%28.8%) were pain-free, indicated by a characteristic pain intensity score of 0. Average pain intensity decreased (from 5.7 2.0 to 3.5 2.4; P < .001). Pain frequency (P < .001) and GCPS (P < .001) also decreased, whereas SCL-90R scores remained unchanged and 26 of the 37 patients reported ongoing treatment. Low baseline pain intensity was the only factor predictive of favorable outcome. Conclusion: A third of the AO patients improved considerably over time, but for many of the patients, AO was a persistent and treatment-resistant condition. J OrOfac Pain 2013;27:151164. doi: 10.11607/jop.1033

Key words: neuropathic pain, orofacial pain, prognosis, prospective study, trigeminal nerve

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