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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:
Fall 2012
Volume 26 , Issue 4

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The Relationship Between Resting Arterial Blood Pressure and Acute Postoperative Pain in Endodontic Patients

James Wayne King, DDS, MS/Eric Bair, PhD/Derek Duggan, DDS, MS/William Maixner, DDS, PhD/Asma A. Khan, BDS, PhD

Pages: 321-327
PMID: 23110272

Aims: To evaluate the relationship between preoperative resting arterial blood pressure and postoperative pain in patients undergoing nonsurgical root canal therapy. Methods: Written informed consent was obtained from normotensive patients seeking treatment for teeth with a preoperative diagnosis of pulpal necrosis and periradicular periodontitis. Preoperative resting blood pressure was recorded, and nonsurgical root canal therapy was initiated using a standardized protocol. Patients recorded their pre- and postoperative pain intensity on a 100-mm visual analog scale (VAS) for 7 days after the procedure. A linear regression model to predict postoperative VAS intensity used preoperative pain and blood pressure values as covariates. Pearson correlations were calculated to assess the relationship between the measures of preoperative blood pressure and both pre- and postoperative pain. Results: After controlling for preoperative pain, significant correlations were observed between preoperative systolic blood pressure and postoperative pain (P < .05), as well as between preoperative pulse pressure and postoperative pain (P < .005) on day 1. Conclusion: This study has provided further evidence of a functional interaction between the cardiovascular and trigeminal pain regulatory systems. Understanding this complex relationship may lead to enhanced pain management strategies. J Orofac Pain 2012;26:321327

Key words: blood pressure, cardiovascular system, endodontics, orofacial pain

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