{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T05:58:52Z","timestamp":1781157532404,"version":"3.54.1"},"reference-count":17,"publisher":"SAGE Publications","issue":"2","license":[{"start":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T00:00:00Z","timestamp":1775520000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by-nc\/4.0\/"},{"start":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T00:00:00Z","timestamp":1775520000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/journals.sagepub.com\/page\/policies\/text-and-data-mining-license"}],"content-domain":{"domain":["journals.sagepub.com"],"crossmark-restriction":true},"short-container-title":["J Orthod"],"published-print":{"date-parts":[[2026,6]]},"abstract":"<jats:sec>\n                    <jats:title>Introduction:<\/jats:title>\n                    <jats:p>Orthodontic traction of impacted maxillary canines remains a clinical challenge, particularly when the tooth is severely angulated. Conventional force application to the crown may increase the risk of damage to adjacent roots due to insufficient control of root positioning. This case demonstrates the use of a boot loop in combination with a micro-screw to upright the canine root within the alveolar bone before potential root contact. Treatment alternatives and biomechanics are discussed to illustrate the effectiveness of this approach.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Diagnosis and treatment plan:<\/jats:title>\n                    <jats:p>A boy aged 14 years 1 month presented with a severely angulated impacted maxillary left canine, with the root apex located above the maxillary left second premolar. The primary treatment objective was to align the impacted canine while preventing injury to adjacent roots. The treatment plan involved uprighting the canine root using a boot loop and micro-screw designed to apply light, controlled forces through loop activation.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>During active treatment, the root angulation of the impacted canine was corrected from 60\u00b0 distal to 13\u00b0 mesial, achieving a maximum angular change of 73\u00b0 through controlled uprighting. The canine was then successfully repositioned into its ideal position. No root resorption, gingival recession, or loss of supporting tissue was observed.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion:<\/jats:title>\n                    <jats:p>The combination of a boot loop and micro-screw offers effective three-dimensional control of crown and root movement, providing a reliable and effective solution for managing severely angulated impacted canines.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1177\/14653125261433577","type":"journal-article","created":{"date-parts":[[2026,4,7]],"date-time":"2026-04-07T13:04:19Z","timestamp":1775567059000},"page":"178-191","update-policy":"https:\/\/doi.org\/10.1177\/sage-journals-update-policy","source":"Crossref","is-referenced-by-count":0,"title":["Cone-beam CT-guided root uprighting of a severely angulated impacted maxillary canine using a boot loop and micro-screw: A case report"],"prefix":"10.1177","volume":"53","author":[{"given":"Rongrong","family":"Xiao","sequence":"first","affiliation":[{"name":"Orthodontic Department, Stomatological Hospital of Dalian University (Dalian Stomatological Hospital), Dalian, Liaoning Province, China"},{"name":"Department of Stomatology, The 73rd Army Hospital of Chinese PLA, Xiamen, Fujian Province, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruoxin","family":"Du","sequence":"additional","affiliation":[{"name":"Orthodontic Department, Stomatological Hospital of Dalian University (Dalian Stomatological Hospital), Dalian, Liaoning Province, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xuechun","family":"Zhou","sequence":"additional","affiliation":[{"name":"Orthodontic Department, Stomatological Hospital of Dalian University (Dalian Stomatological Hospital), Dalian, Liaoning Province, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoyu","family":"Qin","sequence":"additional","affiliation":[{"name":"Orthodontic Department, Stomatological Hospital of Dalian University (Dalian Stomatological Hospital), Dalian, Liaoning Province, China"},{"name":"Department of Stomatology, Changzhi People's Hospital, Changzhi City, Shanxi Province, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Junqiu","family":"Wang","sequence":"additional","affiliation":[{"name":"Orthodontic Department, Stomatological Hospital of Dalian University (Dalian Stomatological Hospital), Dalian, Liaoning Province, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yan","family":"Li","sequence":"additional","affiliation":[{"name":"Endodontic Department, Stomatological Hospital of Dalian University (Dalian Stomatological Hospital), Dalian, Liaoning Province, China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0009-0002-5346-9040","authenticated-orcid":false,"given":"Mingfeng","family":"Wang","sequence":"additional","affiliation":[{"name":"Orthodontic Department, Stomatological Hospital of Dalian University (Dalian Stomatological Hospital), Dalian, Liaoning Province, China"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"179","published-online":{"date-parts":[[2026,4,7]]},"reference":[{"key":"e_1_3_2_2_1","doi-asserted-by":"crossref","unstructured":"Al-Homsi HK Hajeer MY (2015) An evaluation of inter- and intraobserver reliability of CBCT- and 2D-based interpretations of maxillary canine impactions. The Journal of Contemporary Dental Practice 16(8): 648\u2013656. https:\/\/doi.org\/10.5005\/jp-journals-10024-1736","DOI":"10.5005\/jp-journals-10024-1736"},{"key":"e_1_3_2_3_1","doi-asserted-by":"crossref","unstructured":"Counihan K Al-Awadhi EA Butler J (2013) Guidelines for the assessment of the impacted maxillary canine. Dental Update 40: 770\u2013772 775\u2013777. https:\/\/doi.org\/10.12968\/denu.2013.40.9.770","DOI":"10.12968\/denu.2013.40.9.770"},{"key":"e_1_3_2_4_1","doi-asserted-by":"crossref","unstructured":"De Ridder L Aleksieva A Willems G et al. (2022) Prevalence of orthodontic malocclusions in healthy children and adolescents: A systematic review. International Journal of Environmental Research and Public Health 19: 7446. https:\/\/doi.org\/10.3390\/ijerph19127446","DOI":"10.3390\/ijerph19127446"},{"key":"e_1_3_2_5_1","doi-asserted-by":"crossref","unstructured":"Ferreira JTL Romano FL Sasso Stuani MB et al. (2017) Traction of impacted canines in a skeletal Class III malocclusion: A challenging orthodontic treatment. American Journal of Orthodontics and Dentofacial Orthopedics 151: 1159\u20131168. https:\/\/doi.org\/10.1016\/j.ajodo.2017.05.019","DOI":"10.1016\/j.ajodo.2016.05.018"},{"key":"e_1_3_2_6_1","doi-asserted-by":"crossref","unstructured":"Hajeer MY Al-Homsi HK Alfailany DT et al. (2022) Evaluation of the diagnostic accuracy of CBCT-based interpretations of maxillary impacted canines compared to those of conventional radiography: An in vitro study. International Orthodontics 20: 100639. https:\/\/doi.org\/10.1016\/j.ortho.2022.100639","DOI":"10.1016\/j.ortho.2022.100639"},{"key":"e_1_3_2_7_1","doi-asserted-by":"crossref","unstructured":"Khlef HN Hajeer MY Ajaj MA et al. (2018) En-masse retraction with temporary skeletal anchorage devices versus conventional anchorage: Systematic review and meta-analysis. Contemporary Clinical Dentistry 9: 513\u2013523. https:\/\/doi.org\/10.4103\/ccd.ccd_648_18","DOI":"10.4103\/ccd.ccd_661_18"},{"key":"e_1_3_2_8_1","doi-asserted-by":"crossref","unstructured":"Kumar S Mehrotra P Bhagchandani J et al. (2015) Localization of impacted canines. Journal of Clinical and Diagnostic Research: JCDR 9: ZE11\u2013ZE14. https:\/\/doi.org\/10.7860\/JCDR\/2015\/13192.5816","DOI":"10.7860\/JCDR\/2015\/10529.5480"},{"key":"e_1_3_2_9_1","doi-asserted-by":"crossref","unstructured":"Lindauer SJ Isaacson RJ (1995) One-couple orthodontic appliance systems. Seminars in Orthodontics 1: 12\u201324. https:\/\/doi.org\/10.1016\/S1073-8746(95)80084-0","DOI":"10.1016\/S1073-8746(95)80084-0"},{"key":"e_1_3_2_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/ortho.25.3.209"},{"key":"e_1_3_2_11_1","doi-asserted-by":"publisher","DOI":"10.5005\/jp-journals-10024-1699"},{"key":"e_1_3_2_12_1","doi-asserted-by":"crossref","unstructured":"Mousa MM Hajeer MY Burhan AS et al. (2023) Patient-reported outcome measures with temporary skeletal anchorage devices in fixed orthodontic treatment: A systematic review. Cureus 15: e36165. https:\/\/doi.org\/10.7759\/cureus.36165","DOI":"10.7759\/cureus.36165"},{"key":"e_1_3_2_13_1","doi-asserted-by":"crossref","unstructured":"Pitt S Hamdan A Rock P (2006) A treatment difficulty index for unerupted maxillary canines. European Journal of Orthodontics 28: 141\u2013144. https:\/\/doi.org\/10.1093\/ejo\/cji068","DOI":"10.1093\/ejo\/cji068"},{"key":"e_1_3_2_14_1","doi-asserted-by":"publisher","DOI":"10.1259\/dmfr.20120273"},{"key":"e_1_3_2_15_1","doi-asserted-by":"crossref","unstructured":"Schroeder MA Schroeder DK J\u00fanior JC et al. (2019) Orthodontic traction of impacted maxillary canines using segmented arch mechanics. Dental Press Journal of Orthodontics 24: 79\u201389. https:\/\/doi.org\/10.1590\/2177-6709.24.5.079-089.sar","DOI":"10.1590\/2177-6709.24.5.079-089.sar"},{"key":"e_1_3_2_16_1","doi-asserted-by":"publisher","DOI":"10.1093\/ortho.27.2.169"},{"key":"e_1_3_2_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0915-6992(03)80029-8"},{"key":"e_1_3_2_18_1","volume-title":"Orthodontics","author":"Zhao Z","year":"2020","unstructured":"Zhao Z (ed.) (2020) Orthodontics, 7th edn. People\u2019s Medical Publishing House.","edition":"7"}],"container-title":["Journal of Orthodontics"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/14653125261433577","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/full-xml\/10.1177\/14653125261433577","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/journals.sagepub.com\/doi\/pdf\/10.1177\/14653125261433577","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2026,6,11]],"date-time":"2026-06-11T05:16:14Z","timestamp":1781154974000},"score":1,"resource":{"primary":{"URL":"https:\/\/journals.sagepub.com\/doi\/10.1177\/14653125261433577"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2026,4,7]]},"references-count":17,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2026,6]]}},"alternative-id":["10.1177\/14653125261433577"],"URL":"https:\/\/doi.org\/10.1177\/14653125261433577","relation":{},"ISSN":["1465-3125","1465-3133"],"issn-type":[{"value":"1465-3125","type":"print"},{"value":"1465-3133","type":"electronic"}],"subject":[],"published":{"date-parts":[[2026,4,7]]}}}