{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,12,31]],"date-time":"2025-12-31T00:25:38Z","timestamp":1767140738460,"version":"build-2238731810"},"reference-count":21,"publisher":"Springer Science and Business Media LLC","issue":"2","license":[{"start":{"date-parts":[[2022,5,21]],"date-time":"2022-05-21T00:00:00Z","timestamp":1653091200000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"},{"start":{"date-parts":[[2022,5,21]],"date-time":"2022-05-21T00:00:00Z","timestamp":1653091200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0"}],"content-domain":{"domain":["link.springer.com"],"crossmark-restriction":false},"short-container-title":["Oral Maxillofac Surg"],"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>This prospective cohort study aimed to assess early root migration after a coronectomy of the mandibular third molar at 2 and 6\u00a0months after surgery.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>We included all patients treated with a coronectomy of an impacted mandibular third molar. The primary outcome measure was the extent of postoperative root migration after 2 and 6\u00a0months. Migration was measured as the distance between the root complex and a fixed point on the inferior alveolar canal. The secondary aim was to identify factors (age, impaction pattern, and patient sex) that affected the extent of root migration.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      One hundred and sixty-five coronectomies were performed in 141 patients (96 females and 45 males; mean age 33.1\u00a0years, SD 16.0). The 2-month checkup was completed by 121 patients that received 141 coronectomies. The 6-month check-up was completed by 73 patients that received 80 coronectomies. The mean root migrations were 3.30\u00a0mm (SD 2.53\u00a0mm) at 2\u00a0months and 5.27\u00a0mm (SD 3.14\u00a0mm) at 6\u00a0months. In the 2\u20136-month interval, the mean root migration was 2.58\u00a0mm (SD 2.07\u00a0mm). The extents of migration were similar during the 0\u20132-month interval and the 2\u20136-month interval (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009\n                      <jats:italic>0.529<\/jats:italic>\n                      ). Younger age was associated with greater root migration, and females experienced significantly greater migrations than males (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009=\u2009\n                      <jats:italic>0.002<\/jats:italic>\n                      ).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Roots migrated more rapidly in the first two postoperative months, compared to the 2\u20136-month interval. Age was negatively correlated with the extent of root migration, and females showed significantly greater migrations than males.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1007\/s10006-022-01072-z","type":"journal-article","created":{"date-parts":[[2022,5,21]],"date-time":"2022-05-21T02:02:37Z","timestamp":1653098557000},"page":"353-364","update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":6,"title":["Early root migration after a mandibular third molar coronectomy"],"prefix":"10.1007","volume":"27","author":[{"given":"Rashida N.","family":"Simons","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jacco G.","family":"Tuk","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jean-Pierre T. 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This study was reviewed and approved by the institutional Medical Ethics Committee of Amsterdam University Medical Center (reference number W21_264).","order":2,"name":"Ethics","group":{"name":"EthicsHeading","label":"Ethics approval"}},{"value":"Informed consent was obtained from all individual participants included in the study. All patients were informed clearly about the study\u2019s nature before obtaining the written informed consents.","order":3,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent to participate"}},{"value":"Data and information are anonymized, and the authors declare that this submission does not include images or information that may identify individual participants included in the study.","order":4,"name":"Ethics","group":{"name":"EthicsHeading","label":"Consent for publication"}},{"value":"The authors declare no competing interests.","order":5,"name":"Ethics","group":{"name":"EthicsHeading","label":"Competing interests"}}]}}