{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,17]],"date-time":"2026-04-17T17:57:12Z","timestamp":1776448632309,"version":"3.51.2"},"reference-count":25,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2017,2,1]],"date-time":"2017-02-01T00:00:00Z","timestamp":1485907200000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Orthod Craniofacial Res"],"published-print":{"date-parts":[[2017,5]]},"abstract":"<jats:title>Structured Abstract<\/jats:title><jats:sec><jats:title>Objectives<\/jats:title><jats:p>This study sought to investigate the three\u2010dimensional (3D) changes in anteroposterior, vertical and mediolateral positions and orientations of the mandibular condyle as well as joint space parameters following maxillary first premolar extraction and incisor retraction in skeletal Class <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> patients.<\/jats:p><\/jats:sec><jats:sec><jats:title>Setting and Sample Population<\/jats:title><jats:p>Thirty patients were treated by orthodontic maxillary first premolar extraction at the Faculty of Oral and Dental Medicine, Cairo University, Egypt.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>Cone beam computed tomography (<jats:styled-content style=\"fixed-case\">CBCT<\/jats:styled-content>) analysis was performed in patients pre\u2010 and post\u2010treatment. Sixty joints were evaluated based on the volumetric images, and the following 3D measurements were evaluated: (i) mandibular condylar position relative to the cranial base and the joint itself, (ii) condylar inclination and (iii) anterior, posterior, superior and medial joint spaces.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>There was a statistically significant (<jats:italic>P<\/jats:italic>\u2264.05) posterior positioning of the condyle relative to the vertical plane. The distance increased significantly from 5.77 to 6.82\u00a0mm as this plane is anterior to the mandibular condyle. There was an increased anterior joint space (from 3.10 to 3.90\u00a0mm) and decreased posterior joint space (from 2.78 to 2.23\u00a0mm) following treatment. No changes were observed in mediolateral and vertical condylar positions.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>Posterior positioning of the condyle after orthodontic extraction and incisor retraction may occur, but its clinical significance requires further assessment in future studies.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ocr.12141","type":"journal-article","created":{"date-parts":[[2017,2,2]],"date-time":"2017-02-02T04:19:17Z","timestamp":1486009157000},"page":"71-78","source":"Crossref","is-referenced-by-count":30,"title":["Three\u2010dimensional assessment of condylar position and joint spaces after maxillary first premolar extraction in skeletal Class <scp>II<\/scp> malocclusion"],"prefix":"10.1111","volume":"20","author":[{"given":"M. S.","family":"Alhammadi","sequence":"first","affiliation":[{"name":"Faculty of Oral &amp; Dental Medicine, Department of Orthodontics and Dentofacial Orthopedics Ibb University  Ibb Republic of Yemen"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"M. S.","family":"Fayed","sequence":"additional","affiliation":[{"name":"Faculty of Oral &amp; Dental Medicine, Department of Orthodontics and Dentofacial Orthopedics Cairo University  Cairo Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"A.","family":"Labib","sequence":"additional","affiliation":[{"name":"Faculty of Oral &amp; Dental Medicine, Department of Orthodontics and Dentofacial Orthopedics Cairo University  Cairo Egypt"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2017,2]]},"reference":[{"key":"e_1_2_7_2_1","doi-asserted-by":"publisher","DOI":"10.1159\/000144448"},{"key":"e_1_2_7_3_1","first-page":"115","article-title":"Bone morphology of the temporomandibular joint and its relation to dental occlusion","volume":"6","author":"Matsumoto MAN","year":"1995","journal-title":"Braz Dent J"},{"key":"e_1_2_7_4_1","first-page":"4","article-title":"The sixth key to facial beauty and TMJ health","volume":"4","author":"Bowbeer GR","year":"1987","journal-title":"Funct Orthod"},{"key":"e_1_2_7_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-5406(97)70297-X"},{"key":"e_1_2_7_6_1","doi-asserted-by":"publisher","DOI":"10.1067\/moe.2001.111129"},{"key":"e_1_2_7_7_1","first-page":"9","article-title":"Validity of the research diagnostic criteria for temporomandibular disorders axis I in clinical and research settings","volume":"23","author":"Steenks MH","year":"2009","journal-title":"J Orofac Pain"},{"key":"e_1_2_7_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ejwf.2014.08.005"},{"key":"e_1_2_7_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/0030-4220(86)90270-7"},{"key":"e_1_2_7_10_1","doi-asserted-by":"publisher","DOI":"10.1093\/ejo\/25.5.477"},{"key":"e_1_2_7_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-5406(05)81517-3"},{"key":"e_1_2_7_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/0889-5406(87)90006-0"},{"key":"e_1_2_7_13_1","first-page":"175","article-title":"Orthodontic treatment and temporomandibular joint condylar position relationship with disk displacement (magnetic resonance imaging study)","volume":"5","author":"Ali FA","year":"2008","journal-title":"MDJ"},{"key":"e_1_2_7_14_1","doi-asserted-by":"publisher","DOI":"10.1067\/mod.2002.128863"},{"key":"e_1_2_7_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-5406(88)80004-0"},{"key":"e_1_2_7_16_1","doi-asserted-by":"publisher","DOI":"10.1016\/0889-5406(91)70080-G"},{"key":"e_1_2_7_17_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-5406(05)81581-1"},{"key":"e_1_2_7_18_1","doi-asserted-by":"publisher","DOI":"10.1016\/0889-5406(92)70075-L"},{"key":"e_1_2_7_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0889-5406(97)70052-0"},{"key":"e_1_2_7_20_1","doi-asserted-by":"publisher","DOI":"10.1016\/0889-5406(92)70081-K"},{"key":"e_1_2_7_21_1","doi-asserted-by":"publisher","DOI":"10.2478\/v10039-012-0007-9"},{"key":"e_1_2_7_22_1","doi-asserted-by":"publisher","DOI":"10.1259\/dmfr\/76385066"},{"key":"e_1_2_7_23_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3913(99)70157-5"},{"key":"e_1_2_7_24_1","doi-asserted-by":"publisher","DOI":"10.1038\/sj.dmfr.4600603"},{"key":"e_1_2_7_25_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajodo.2007.05.021"},{"key":"e_1_2_7_26_1","doi-asserted-by":"publisher","DOI":"10.1259\/dmfr\/84227642"}],"container-title":["Orthodontics &amp; Craniofacial Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1111%2Focr.12141","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1111\/ocr.12141","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,10,2]],"date-time":"2023-10-02T10:19:13Z","timestamp":1696241953000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1111\/ocr.12141"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2017,2]]},"references-count":25,"journal-issue":{"issue":"2","published-print":{"date-parts":[[2017,5]]}},"alternative-id":["10.1111\/ocr.12141"],"URL":"https:\/\/doi.org\/10.1111\/ocr.12141","archive":["Portico"],"relation":{},"ISSN":["1601-6335","1601-6343"],"issn-type":[{"value":"1601-6335","type":"print"},{"value":"1601-6343","type":"electronic"}],"subject":[],"published":{"date-parts":[[2017,2]]}}}