{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,14]],"date-time":"2026-02-14T02:58:04Z","timestamp":1771037884927,"version":"3.50.1"},"reference-count":26,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2023,8,14]],"date-time":"2023-08-14T00:00:00Z","timestamp":1691971200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthod Craniofacial Res"],"published-print":{"date-parts":[[2024,4]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>To evaluate alveolar bone dimensions and its relationship with tooth movement (retraction, intrusion and torque) during orthodontic treatment with fixed appliance and clear aligners.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Thirty\u2010two patients were included in this retrospective clinical study. Cone beam computed tomography (CBCT) was collected before and after treatment to measure the volume of dehiscence and fenestrations in the maxillary anterior region, anterior alveolar bone thickness and height and degree of tooth movement. Rank\u2010sum tests were used to compare the differences in alveolar bone defect volumes between clear aligners and fixed appliance, multiple linear regression analysis was used for study evaluation, and kappa statistics were used to assess internal consistency and test\u2010retest reliability.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Post\u2010operatively, most alveolar bone defects occurred on the labial side. The incidence of bone fenestration was 23.96% in the clear aligner group and 26.18% in the fixed appliance group, which was higher than the incidence of bone dehiscence (5.21%). The labial bone height decreased by 0.272\u2009mm, and the palatal bone height increased by 0.617\u2009mm for every 1\u2009mm downward intrusion of the anterior tooth apex in the fixed appliance group. In the clear aligner group, there was no significant change in the labial bone height, and the palatal bone height decreased by 0.447\u2009mm for every 1\u2009mm of anterior tooth retraction coronally.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>In the fixed appliance group, anterior tooth intrusion and retraction may have led to alveolar bone resorption by its compression at the cervical level. This study provides a three\u2010dimensional tooth movement evaluation method by using CBCT.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ocr.12705","type":"journal-article","created":{"date-parts":[[2023,8,14]],"date-time":"2023-08-14T09:59:54Z","timestamp":1692007194000},"page":"220-227","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["A retrospective study of alveolar bone remodelling after anterior retraction in orthodontic tooth extraction cases with clear aligners and fixed appliances"],"prefix":"10.1111","volume":"27","author":[{"given":"Ziyu","family":"Guo","sequence":"first","affiliation":[{"name":"Department of Orthodontics, State Key Laboratory of Military Stomatology &amp; National Clinical Research Center for Oral Diseases &amp; Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology Fourth Military Medical University  Xi'an China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-9650-4411","authenticated-orcid":false,"given":"Ruijie","family":"Zhang","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, State Key Laboratory of Military Stomatology &amp; National Clinical Research Center for Oral Diseases &amp; Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology Fourth Military Medical University  Xi'an China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Changgang","family":"Guo","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, State Key Laboratory of Military Stomatology &amp; National Clinical Research Center for Oral Diseases &amp; Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology Fourth Military Medical University  Xi'an China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Xin","family":"Li","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, State Key Laboratory of Military Stomatology &amp; National Clinical Research Center for Oral Diseases &amp; Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, School of Stomatology Fourth Military Medical University  Xi'an China"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Zuolin","family":"Jin","sequence":"additional","affiliation":[{"name":"Department of Orthodontics, State Key Laboratory of Military Stomatology &amp; 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