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This study aimed to assess the craniofacial features of adult obese OSA patients in relation to their obesity onset.<\/jats:p><\/jats:sec><jats:sec><jats:title>Materials and Methods<\/jats:title><jats:p>A total of 62 adult OSA patients were included in the study, consisting of 12 early\u2010onset (i.e. before puberty), 21 late\u2010onset (i.e. after puberty) and 29 non\u2010obese. All participants underwent a sleep study and cephalometric radiograph. Cephalometric analysis was conducted to measure the craniofacial features among the groups.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>The early obesity onset group (<jats:italic>n<\/jats:italic>\u2009=\u200912) showed a more prognathic mandible, longer lower facial height, protrusive incisors, a more caudal position of the hyoid bone and a wider lower airway. The late\u2010onset group (<jats:italic>n<\/jats:italic>\u2009=\u200921) had more proclined and protrusive upper incisors, a shallower overbite, a more inferiorly positioned hyoid bone and an obtuse craniocervical angle. The overall obese group showed a combination of the findings above, plus a shorter soft palate and shorter airway length.<\/jats:p><jats:p>There was no significant difference between early and late obesity onset groups. However, the early group showed a tendency for a shallower or decreased mandibular plane angle and deeper overbite.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusions<\/jats:title><jats:p>The current pilot study had many limitations but holds important information as a hypothesis generator. Craniofacial features of OSA patients with different obesity onset showed discrepancies and were distinguished from non\u2010obese controls. Adult OSA patients with an early obesity onset showed a tendency for a more hypodivergent growth pattern than those with a late obesity onset.<\/jats:p><\/jats:sec>","DOI":"10.1111\/ocr.12736","type":"journal-article","created":{"date-parts":[[2023,12,1]],"date-time":"2023-12-01T09:59:05Z","timestamp":1701424745000},"page":"364-375","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":3,"title":["Craniofacial features of adult obese obstructive sleep apnoea patients in relation to the obesity onset \u2013 A pilot study"],"prefix":"10.1111","volume":"27","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-4693-9251","authenticated-orcid":false,"given":"Samah","family":"Alfuriji","sequence":"first","affiliation":[{"name":"Preventive Dental Science Department, College of Dentistry King Saud bin Abdulaziz University for Health Sciences  Riyadh Saudi Arabia"},{"name":"King Abdullah International Medical Research Center Ministry of 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