{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,20]],"date-time":"2026-04-20T06:00:39Z","timestamp":1776664839769,"version":"3.51.2"},"reference-count":40,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2025,2,3]],"date-time":"2025-02-03T00:00:00Z","timestamp":1738540800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthod Craniofacial Res"],"published-print":{"date-parts":[[2025,6]]},"abstract":"<jats:title>ABSTRACT<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>The objectives are to assess the severity and frequency of clinically relevant external apical root resorption (EARR) \u2265\u20092\u2009mm during orthodontic treatment with Damon passive self\u2010ligating and Victory conventional standardised fixed appliance systems and to evaluate the relevance of intermediate radiographic examinations for early detection and prevention of severe EARR.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Adolescents aged 12\u201317\u2009years with crowded and displaced teeth planned for non\u2010extraction treatment were recruited from three orthodontic clinics. Participants were randomly allocated in a 1:1 ratio to treatment with either Damon Q (<jats:italic>n<\/jats:italic>\u2009=\u200935) or Victory (<jats:italic>n<\/jats:italic>\u2009=\u200940) using stratified blocks, with allocation concealed. EARR was assessed for all roots from incisors to molars using multiplanar reconstruction in cone beam computed tomography (CBCT) images acquired from various CBCT machines before, during and after treatment.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>Sixty\u2010two patients were included in the EARR analysis. The upper incisors were the most affected tooth group, with mean EARR values of 0.20\u2009mm for Damon and 0.51\u2009mm for Victory (NS, alpha 1%). The frequency of clinically relevant EARR in this tooth group was 5.0% for Damon and 7.2% for Victory (NS, alpha 5%). Only one case with clinically relevant EARR after treatment was identified in the intermediate radiographic examinations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The overall severity and frequency of EARR were below clinically relevant levels in both treatment groups. The results strengthen the evidence that routine intermediate radiography appears to be of limited relevance for early detection and prevention of severe EARR in non\u2010extraction treatments for adolescents with crowded teeth.<\/jats:p><\/jats:sec><jats:sec><jats:title>Trial Registration<\/jats:title><jats:p>\n<jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"http:\/\/clinicaltrials.gov\">ClinicalTrials.gov<\/jats:ext-link>: NCT05664282<\/jats:p><\/jats:sec>","DOI":"10.1111\/ocr.12903","type":"journal-article","created":{"date-parts":[[2025,2,3]],"date-time":"2025-02-03T16:33:51Z","timestamp":1738600431000},"page":"515-526","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Evaluation of External Apical Root Resorption and the Relevance of Intermediate Radiography in Non\u2010Extraction Treatment With Fixed Appliances for Adolescents With Crowding: A Multicenter Randomised Controlled Trial Using <scp>CBCT<\/scp>"],"prefix":"10.1111","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-7240-1776","authenticated-orcid":false,"given":"Kristina","family":"Johansson","sequence":"first","affiliation":[{"name":"Faculty of Odontology Malm\u00f6 University  Malm\u00f6 Sweden"},{"name":"Department of Orthodontics \u00d6stersund Hospital  \u00d6stersund Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Helena","family":"Christell","sequence":"additional","affiliation":[{"name":"Faculty of Odontology Malm\u00f6 University  Malm\u00f6 Sweden"},{"name":"Department of Radiology Helsingborg Hospital  Helsingborg Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna","family":"Brechter","sequence":"additional","affiliation":[{"name":"Private Orthodontic Practice, Bernhold Ortodonti  Helsingborg Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Liselotte","family":"Paulsson","sequence":"additional","affiliation":[{"name":"Faculty of Odontology Malm\u00f6 University  Malm\u00f6 Sweden"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2025,2,3]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjaa058"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjaa072"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2018.10.015"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjy027"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2009.06.021"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2019.05.011"},{"key":"e_1_2_10_8_1","unstructured":"L. W.Graber R. L.Vanarsdall andK. W.Vig \u201cOrthodontics: Current Principles and Techniques.\u201d 5. rev. ed. Mosby 2011."},{"key":"e_1_2_10_9_1","volume-title":"Contemporary Orthodontics","author":"Proffit W. R.","year":"2019"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1111\/ocr.1998.1.1.52"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1053\/j.sodo.2007.12.002"},{"key":"e_1_2_10_12_1","unstructured":"\u201cDamon Braces More Than Straight Teeth \u201d 2024 https:\/\/damonbraces.com\/en\u2010us."},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2014.12.026"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12903\u2010016\u20100320\u2010y"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ortho.2021.09.005"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12903\u2010018\u20100579\u20102"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00056-018-0133-5"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/16.3.223"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2007.06.012"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.2319\/042012\u2010332.1"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjz034"},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2020.04.036"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0889\u20105406(95)70151\u20106"},{"key":"e_1_2_10_24_1","doi-asserted-by":"publisher","DOI":"10.1093\/oxfordjournals.ejo.a035999"},{"key":"e_1_2_10_25_1","unstructured":"University of Malm\u00f6 \u201cMau Methods and Indices Silness L\u00f6e Index \u201d 2024 https:\/\/capp.mau.se\/methods\u2010and\u2010indices\/."},{"key":"e_1_2_10_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002\u20109416(75)90086\u2010x"},{"key":"e_1_2_10_27_1","doi-asserted-by":"publisher","DOI":"10.3109\/00016356408993963"},{"key":"e_1_2_10_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ijnurstu.2011.01.016"},{"key":"e_1_2_10_29_1","doi-asserted-by":"publisher","DOI":"10.2340\/biid.v11.41161"},{"key":"e_1_2_10_30_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejwf.2021.09.003"},{"key":"e_1_2_10_31_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002\u20109416(82)90317\u20107"},{"key":"e_1_2_10_32_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/10.1.30"},{"key":"e_1_2_10_33_1","doi-asserted-by":"publisher","DOI":"10.1186\/s12903\u2010015\u20100100\u20100"},{"key":"e_1_2_10_34_1","doi-asserted-by":"publisher","DOI":"10.1259\/dmfr.20180368"},{"key":"e_1_2_10_35_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2020.05.010"},{"key":"e_1_2_10_36_1","doi-asserted-by":"publisher","DOI":"10.1590\/2177\u20106709.24.5.020\u2010028.oin"},{"key":"e_1_2_10_37_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjm047"},{"key":"e_1_2_10_38_1","doi-asserted-by":"publisher","DOI":"10.1186\/s40510\u2010016\u20100133\u20101"},{"key":"e_1_2_10_39_1","doi-asserted-by":"publisher","DOI":"10.17219\/dmp\/145369"},{"key":"e_1_2_10_40_1","doi-asserted-by":"publisher","DOI":"10.5624\/isd.2015.45.4.263"},{"key":"e_1_2_10_41_1","doi-asserted-by":"publisher","DOI":"10.1067\/mod.2001.113409"}],"container-title":["Orthodontics &amp; Craniofacial Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ocr.12903","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,6,21]],"date-time":"2025-06-21T09:33:45Z","timestamp":1750498425000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/ocr.12903"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2025,2,3]]},"references-count":40,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2025,6]]}},"alternative-id":["10.1111\/ocr.12903"],"URL":"https:\/\/doi.org\/10.1111\/ocr.12903","archive":["Portico"],"relation":{},"ISSN":["1601-6335","1601-6343"],"issn-type":[{"value":"1601-6335","type":"print"},{"value":"1601-6343","type":"electronic"}],"subject":[],"published":{"date-parts":[[2025,2,3]]},"assertion":[{"value":"2024-08-20","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-01-24","order":2,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2025-02-03","order":3,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}