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Influence of Preoperative Mechanical Allodynia on Predicting Postoperative Pain after Root Canal Treatment: A Prospective Clinical Study
- Title
- Influence of Preoperative Mechanical Allodynia on Predicting Postoperative Pain after Root Canal Treatment: A Prospective Clinical Study
- Authors
- Jang, Young-Eun; Kim, Yemi; Kim, Bom Sahn
- Ewha Authors
- 김범산; 김예미; 장영은
- SCOPUS Author ID
- 김범산; 김예미; 장영은
- Issue Date
- 2021
- Journal Title
- JOURNAL OF ENDODONTICS
- ISSN
- 0099-2399
1878-3554
- Citation
- JOURNAL OF ENDODONTICS vol. 47, no. 5, pp. 770 - +
- Keywords
- Mechanical allodynia; odontogenic pain; periapical pain; postoperative pain; preoperative pain intensity; root canal treatment
- Publisher
- ELSEVIER SCIENCE INC
- Indexed
- SCIE; SCOPUS
- Document Type
- Article
- Abstract
- Introduction: Odontogenic pain can manifest as pulpal pain, periapical pain (mechanical allodynia), or both. This study aimed to assess the changes in the intensity of mechanical allodynia (MA) and to identify predictors of postoperative pain after root canal treatment (RCT). Methods: In total, 579 consecutive patients who required RCT were enrolled; we included patients with asymptomatic pulpal diagnoses to avoid any effects of preoperative spontaneous pain on postoperative pain and to evaluate MA independently. Using a visual analog scale (VAS), patients separately indicated the intensity of spontaneous pain, tenderness to percussion, and pain on biting; these measurements were performed before treatment (preoperative pain), at the beginning of each visit (postpreparation pain), and daily for 1 week after RCT (postobturation pain). For analytical purposes, patients were subdivided into 2 groups based on the intensity of preoperative MA (none to mild [VAS 4] or moderate to severe [VAS 4]) to evaluate changes in MA and predictive factors of moderate to severe postoperative pain. A generalized estimating equation, repeated-measures analysis of variance, and logistic regression analysis were used. Results: Although the intensity of MA was significantly higher in the moderate to severe group after the initiation of RCT (P < .05), 93% of them experienced alleviation in MA, and 30% of patients in the none to mild group experienced an increase in MA. After adjusting for clinical variables, moderate to severe preoperative MA and the presence of necrotic pulp were significantly correlated with moderate to severe postoperative pain with an odds ratio of 4.107 and 0.286, respectively. Conclusions: Moderate to severe preoperative MA was a predictive factor of postoperative pain in patients undergoing RCT. (J Endod 2021;47:770?778.)
- DOI
- 10.1016/j.joen.2021.01.004
- Appears in Collections:
- 의과대학 > 의학과 > Journal papers
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