{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,21]],"date-time":"2026-07-21T19:09:32Z","timestamp":1784660972869,"version":"3.55.0"},"reference-count":39,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2025,7,23]],"date-time":"2025-07-23T00:00:00Z","timestamp":1753228800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100009778","name":"Region J\u00e4mtland H\u00e4rjedalen","doi-asserted-by":"publisher","award":["JLL 940048"],"award-info":[{"award-number":["JLL 940048"]}],"id":[{"id":"10.13039\/501100009778","id-type":"DOI","asserted-by":"publisher"}]},{"DOI":"10.13039\/501100009778","name":"Region J\u00e4mtland H\u00e4rjedalen","doi-asserted-by":"publisher","award":["968460"],"award-info":[{"award-number":["968460"]}],"id":[{"id":"10.13039\/501100009778","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Orthod Craniofacial Res"],"published-print":{"date-parts":[[2025,12]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objectives<\/jats:title>\n                    <jats:p>To assess and compare treatment effects and treatment time in adolescents with crowded and displaced teeth during and after non\u2010extraction treatments using a passive self\u2010ligating bracket system (PSLB) and a conventional bracket system (CB).<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Materials and Methods<\/jats:title>\n                    <jats:p>\n                      Consecutive adolescents (12\u201317\u2009years old) with crowded and displaced teeth were randomised through computer generated block randomisation in a two\u2010arm parallel\u2010group design, to non\u2010extraction fixed appliance treatment with either PSLB (Damon Q,\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200962) or CB (Victory,\n                      <jats:italic>n<\/jats:italic>\n                      \u2009=\u200970) at four orthodontic clinics. Study models and cephalograms were collected at baseline, post\u2010alignment and post\u2010treatment. Primary outcome was assessed with weighted Peer Assessment Rating index (wPAR) and secondary outcomes with Little's Irregularity Index (LII), and as transversal width (mm), incisor inclination (\u00b0), position (mm) and treatment time (months).\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>\n                      Intergroup differences in wPAR with mean score reductions of \u221224.07 (CB) and \u221222.11 (PSLB), LII upper\/lower arch reductions of \u22129.02\/\u22125.96 (CB) and \u22128.44\/\u22125.29 (PSLB), and mean treatment times of 21.74 (CB) and 24.35 (PSLB) months were non\u2010significant (NS). Lateral expansion was greater in the PSLB group during alignment; mean intergroup maxillary differences (MD) were 1.35 at inter\u2010canines, 1.21\u2009mm at first inter\u2010premolars, and mandibular MD were 0.75 at first, 0.76\u2009mm at second inter\u2010premolars (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009\u2264\u20090.019). Greater incisor proclination was observed in the CB group (L1NB, MD\u2009=\u20092.28\u00b0; ILiML, MD\u2009=\u20092.23\u00b0) (\n                      <jats:italic>p<\/jats:italic>\n                      \u2009\u2264\u20090.016). Intergroup differences post\u2010treatment were NS.\n                    <\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Conclusion<\/jats:title>\n                    <jats:p>Great occlusal treatment outcomes were observed in both groups with no significant difference in treatment time. Although the expansion patterns differed during alignment, no significant intergroup difference remained after treatment.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Trial Registration<\/jats:title>\n                    <jats:p>\n                      The protocol is registered on\n                      <jats:ext-link xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" xlink:href=\"http:\/\/clinicaltrials.gov\">ClinicalTrials.gov<\/jats:ext-link>\n                      (NCT05664282)\n                    <\/jats:p>\n                  <\/jats:sec>","DOI":"10.1111\/ocr.70005","type":"journal-article","created":{"date-parts":[[2025,7,23]],"date-time":"2025-07-23T13:30:16Z","timestamp":1753277416000},"page":"929-942","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":2,"title":["Treatment Effects and Treatment Time in Adolescents With Crowded and Displaced Teeth Treated With Fixed Appliance Systems Without Extractions: A Multi\u2010Centre Randomised Controlled Trial"],"prefix":"10.1111","volume":"28","author":[{"ORCID":"https:\/\/orcid.org\/0009-0004-6558-8340","authenticated-orcid":false,"given":"Linda Bokander","family":"Matilainen","sequence":"first","affiliation":[{"name":"Faculty of Odontology, Malm\u00f6 University  Malm\u00f6 Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-7240-1776","authenticated-orcid":false,"given":"Kristina","family":"Johansson","sequence":"additional","affiliation":[{"name":"Faculty of Odontology, Malm\u00f6 University  Malm\u00f6 Sweden"},{"name":"Department of Orthodontics \u00d6stersund Hospital  \u00d6stersund Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Michal","family":"Wiaderny","sequence":"additional","affiliation":[{"name":"Department of Orthodontics Folktandv\u00e5rden Dalarna  Falun Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anna","family":"Brechter","sequence":"additional","affiliation":[{"name":"Private Orthodontic Practice, Bernhold Ortodonti  Helsingborg Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sofia","family":"Petr\u00e9n","sequence":"additional","affiliation":[{"name":"Faculty of Odontology, Malm\u00f6 University  Malm\u00f6 Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Vincenzo","family":"D'Ant\u00f2","sequence":"additional","affiliation":[{"name":"Department of Neurosciences, Reproductive Sciences and Oral Sciences, School of Orthodontics University of Naples Federico II  Naples Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Liselotte","family":"Paulsson","sequence":"additional","affiliation":[{"name":"Faculty of Odontology, Malm\u00f6 University  Malm\u00f6 Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2025,7,23]]},"reference":[{"key":"e_1_2_13_2_1","doi-asserted-by":"publisher","DOI":"10.23804\/ejpd.2020.21.02.05"},{"key":"e_1_2_13_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/14651858.CD003453.pub2"},{"key":"e_1_2_13_4_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cju046"},{"key":"e_1_2_13_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/ocr.1998.1.1.52"},{"key":"e_1_2_13_6_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/14.2.125"},{"key":"e_1_2_13_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2009.06.023"},{"key":"e_1_2_13_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2010.07.020"},{"key":"e_1_2_13_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0002\u20109416(75)90086\u2010x"},{"key":"e_1_2_13_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/cjp123"},{"key":"e_1_2_13_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2009.08.019"},{"key":"e_1_2_13_12_1","doi-asserted-by":"publisher","DOI":"10.1007\/s00056\u2010017\u20100110\u20104"},{"key":"e_1_2_13_13_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ortho.2021.09.005"},{"key":"e_1_2_13_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ortho.2019.08.001"},{"key":"e_1_2_13_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2015.03.014"},{"key":"e_1_2_13_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0889\u20105406(95)70151\u20106"},{"key":"e_1_2_13_17_1","volume-title":"Oral Health Country\/Area Profile Project\/Methods and Indices Silness\u2014L\u00f6e Index. 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