{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,9]],"date-time":"2026-03-09T06:26:36Z","timestamp":1773037596932,"version":"3.50.1"},"reference-count":45,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2016,10,3]],"date-time":"2016-10-03T00:00:00Z","timestamp":1475452800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100003593","name":"Conselho Nacional de Desenvolvimento Cient\u00edfico e Tecnol\u00f3gico","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100003593","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100003545","name":"Minist\u00e9rio da Ci\u00eancia, Tecnologia e Inova\u00e7\u00e3o","doi-asserted-by":"publisher","award":["456415\/2012\u20102"],"award-info":[{"award-number":["456415\/2012\u20102"]}],"id":[{"id":"10.13039\/501100003545","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Int Endodontic J"],"published-print":{"date-parts":[[2017,8]]},"abstract":"Abstract<\/jats:title>Aim<\/jats:title>To determine the prevalence of preoperative endodontic pain (PREP<\/jats:styled-content>) and the incidence of postoperative endodontic pain (POEP<\/jats:styled-content>), identifying the predictors of PREP<\/jats:styled-content> and POEP<\/jats:styled-content> in a southern Brazilian subpopulation, using clinical data from an electronic chart database (ECD<\/jats:styled-content>).<\/jats:p><\/jats:sec>Methodology<\/jats:title>This retrospective observational study included 563 consecutive individuals presenting for root canal treatment (RCT<\/jats:styled-content>). Patients were treated by undergraduate and graduate students, following standard RCT<\/jats:styled-content> protocols. Demographic, medical and dental variables were extracted from a pre\u2010structured and standardized ECD<\/jats:styled-content>. The main outcomes PREP<\/jats:styled-content> and incident POEP<\/jats:styled-content> were collected through a 0\u201310 numeric rating scale, dichotomized as none\/mild (<4) or moderate\/severe (\u22654) pain. Predictive models calculating the prevalence ratios (PR<\/jats:styled-content>) of PREP<\/jats:styled-content> and the relative risks (RR<\/jats:styled-content>) of incident POEP<\/jats:styled-content> were carried out with Poisson regression analysis, estimating the relationship between clinical factors, PREP<\/jats:styled-content> and incident POEP<\/jats:styled-content>.<\/jats:p><\/jats:sec>Results<\/jats:title>Mean age at baseline was 49.2\u00a0\u00b1\u00a017.1\u00a0years, with 68.4% women. The prevalence and incidence of moderate\/severe PREP<\/jats:styled-content> and POEP<\/jats:styled-content> were 44.4% and 3.8%, respectively. RCT<\/jats:styled-content> intervention significantly reduced PREP<\/jats:styled-content> (P<\/jats:italic>\u00a0<\u00a00.001). Multivariate analysis revealed that group of teeth, location (mandibular teeth), pulpitis, necrotic pulp, preoperative swelling and periapical radiolucency were independently associated with moderate\/severe PREP<\/jats:styled-content>, whilst age \u226560\u00a0years and root canal retreatments were independent protective factors to PREP<\/jats:styled-content> (P<\/jats:italic>\u00a0<\u00a00.05). No demographic, medical or dental variables were associated with POEP<\/jats:styled-content>, although molar teeth (RR<\/jats:styled-content>\u00a0=\u00a04.23, 95%CI<\/jats:styled-content>\u00a0=\u00a00.93\u201319.2, P<\/jats:italic>\u00a0=\u00a00.056) had a borderline nonsignificant association.<\/jats:p><\/jats:sec>Conclusions<\/jats:title>Moderate\/severe PREP<\/jats:styled-content> was independently associated with age, group of teeth, location, preoperative swelling, retreatments and pulp and periapical status. No demographic, medical or dental variable predicted moderate\/severe POEP<\/jats:styled-content> following RCT<\/jats:styled-content> amongst this subpopulation.<\/jats:p><\/jats:sec>","DOI":"10.1111\/iej.12684","type":"journal-article","created":{"date-parts":[[2016,8,13]],"date-time":"2016-08-13T08:34:45Z","timestamp":1471077285000},"page":"729-739","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":14,"title":["Predicting pre\u2010 and postoperative pain of endodontic origin in a southern Brazilian subpopulation: an electronic database study"],"prefix":"10.1111","volume":"50","author":[{"given":"M. S.","family":"Gomes","sequence":"first","affiliation":[{"name":"Clinical Department School of Dentistry Pontifical Catholic University of Rio Grande do Sul Porto Alegre Brazil"},{"name":"Medical and Dental Center of the Military Police of Rio Grande do Sul Porto Alegre Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6158-8384","authenticated-orcid":false,"given":"D. E.","family":"B\u00f6ttcher","sequence":"additional","affiliation":[{"name":"Clinical Department School of Dentistry Pontifical Catholic University of Rio Grande do Sul Porto Alegre Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R. K.","family":"Scarparo","sequence":"additional","affiliation":[{"name":"Department of Conservative Dentistry School of Dentistry Federal University of Rio Grande do Sul Porto Alegre Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"R. D.","family":"Morgental","sequence":"additional","affiliation":[{"name":"Department of Semiology and Clinics School of Dentistry Federal University of Pelotas Rio Grande do Sul Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"S. B. G.","family":"Waltrick","sequence":"additional","affiliation":[{"name":"Clinical Department School of Dentistry Pontifical Catholic University of Rio Grande do Sul Porto Alegre Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A. C.","family":"Ghisi","sequence":"additional","affiliation":[{"name":"Clinical Department School of Dentistry Pontifical Catholic University of Rio Grande do Sul Porto Alegre Brazil"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"N. 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