{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,1,10]],"date-time":"2026-01-10T18:43:27Z","timestamp":1768070607512,"version":"3.49.0"},"reference-count":27,"publisher":"Wiley","issue":"5","license":[{"start":{"date-parts":[[2017,6,21]],"date-time":"2017-06-21T00:00:00Z","timestamp":1498003200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100004954","name":"Augustinus Fonden","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100004954","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/100008397","name":"Velux Fonden","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100008397","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Dental Traumatology"],"published-print":{"date-parts":[[2017,10]]},"abstract":"Abstract<\/jats:title>Background\/Aim<\/jats:title>Traumatic dental injuries in the primary dentition occur frequently. Long\u2010term complications may potentially cause damage to the permanent successor. The aim of this study was to report the risk of pulp necrosis (PN<\/jats:styled-content>), pulp canal obliteration (PCO<\/jats:styled-content>), repair\u2010related resorption (RRR), infection\u2010related resorption (IRR<\/jats:styled-content>), ankylosis\u2010related resorption (ARR), and premature tooth loss (PTL<\/jats:styled-content>) in primary teeth following concussion and subluxation injuries, and to identify possible risk factors for PN<\/jats:styled-content>, PCO<\/jats:styled-content>, and PTL<\/jats:styled-content> following subluxation.<\/jats:p><\/jats:sec>Material and methods<\/jats:title>The study was a retrospective analysis of a cohort comprising 31 patients (36 teeth) with concussion injury and 174 patients (241 teeth) with subluxation injury. No treatment was performed. The follow\u2010up program included examination after 4\u00a0weeks, 8\u00a0weeks, 6\u00a0months, 1\u00a0year, and when the patients were 6\u00a0years of age. Minimum follow up was 1\u00a0year or until the time of tooth loss. Statistics: Kaplan\u2010Meier and Aalen\u2010Johansen methods and Cox regression analysis. Level of significance was set at 5%.<\/jats:p><\/jats:sec>Results<\/jats:title>Risk estimated after one year. Concussion: PCO<\/jats:styled-content> 8.6% (95% CI<\/jats:styled-content>: 0\u201017.9), PN<\/jats:styled-content> 5.7% (95% CI<\/jats:styled-content>: 0\u201013.4), PTL<\/jats:styled-content> 5.6% (95% CI<\/jats:styled-content>: 0\u201013.4). Subluxation: PCO<\/jats:styled-content> 23.2% (95% CI<\/jats:styled-content>: 17.8\u201028.6), PN<\/jats:styled-content> 8.3% (95% CI<\/jats:styled-content>: 4.8\u201011.8), IRR<\/jats:styled-content> 2.6% (95% CI<\/jats:styled-content>: 0.5\u20104.6), PTL<\/jats:styled-content> 9.5% (95% CI<\/jats:styled-content>: 5.0\u201014.1). Most complications (95%) were diagnosed within the first year. Most cases of PN<\/jats:styled-content> (65%) and PTL<\/jats:styled-content> (85%) were seen in patients aged 4\u00a0years or more.<\/jats:p><\/jats:sec>Conclusion<\/jats:title>Primary teeth with concussion or subluxation injury carry a low risk of PN and infection with periapical inflammation, root resorption, and PTL. Nearly all complications were diagnosed within the first year after the injury. The risk of PTL was highest in patients more than 4\u00a0years of age at the time of injury.<\/jats:p><\/jats:sec>","DOI":"10.1111\/edt.12342","type":"journal-article","created":{"date-parts":[[2017,3,28]],"date-time":"2017-03-28T08:29:28Z","timestamp":1490689768000},"page":"337-344","source":"Crossref","is-referenced-by-count":23,"title":["The risk of healing complications in primary teeth with concussion or subluxation injury\u2014A retrospective cohort study"],"prefix":"10.1111","volume":"33","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-0859-7262","authenticated-orcid":false,"given":"Eva","family":"Lauridsen","sequence":"first","affiliation":[{"name":"Resource Centre for Rare Oral Diseases Department of Oral and Maxillo\u2010Facial Surgery Copenhagen University Hospital, Rigshospitalet Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Paul","family":"Blanche","sequence":"additional","affiliation":[{"name":"Department of Public Health University of Copenhagen Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Catharina","family":"Amaloo","sequence":"additional","affiliation":[{"name":"Pediatric Dentistry and Clinical Genetics Department of Odontology University of Copenhagen Copenhagen Denmark"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jens O.","family":"Andreasen","sequence":"additional","affiliation":[{"name":"Resource Centre for Rare Oral Diseases Department of Oral and Maxillo\u2010Facial Surgery Copenhagen University Hospital, Rigshospitalet Copenhagen 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