{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,22]],"date-time":"2026-07-22T23:08:30Z","timestamp":1784761710240,"version":"3.55.0"},"reference-count":21,"publisher":"Wiley","issue":"8","license":[{"start":{"date-parts":[[2015,5,5]],"date-time":"2015-05-05T00:00:00Z","timestamp":1430784000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Ethics Committee of the Sichuan University","award":["2011070"],"award-info":[{"award-number":["2011070"]}]},{"name":"Sichuan province, China","award":["2014SZ0157"],"award-info":[{"award-number":["2014SZ0157"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Oral Rehabilitation"],"published-print":{"date-parts":[[2015,8]]},"abstract":"<jats:title>Summary<\/jats:title><jats:p>Treatment outcomes of Angle Class <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> subdivision malocclusions may be compromised because of the uncertainty of the aetiology. Previous studies have reported controversial ideas about the origins, but the existence of a primary contributor still remains unknown. Functional factors have been mentioned as a probable cause, but until now, there have been no supporting data. This study was a cross\u2010sectional investigation of the characteristics of Angle Class <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> subdivision malocclusion, including dental, skeletal and functional factors, by comparison of the subdivision group and the normal occlusion group. The evaluations of dental and skeletal asymmetries of both groups were carried out by cone\u2010beam computed tomography (<jats:styled-content style=\"fixed-case\">CBCT<\/jats:styled-content>) and analysis of dental casts. The functional deviations were evaluated by cast mounting and measuring. In the subdivision group, the asymmetric position of the glenoid fossa was found to be the most significant skeletal asymmetry. No dentoalveolar asymmetry was found in this group. The most important finding was that, in subdivision malocclusions, functional deviation resulting in pseudoasymmetry occurred in 32\u00b786% of the study participants. This deviation is probably related to the disharmonious arch width between maxillary and mandibular dental arches in the premolar section. The origin of Angle Class <jats:styled-content style=\"fixed-case\">II<\/jats:styled-content> subdivision malocclusion is multifactorial, with dental, skeletal and functional factors included. Functional deviation occurs, probably due to dental arch width disharmony. Asymmetric position of the glenoid fossa may account for most of the skeletal asymmetry.<\/jats:p>","DOI":"10.1111\/joor.12303","type":"journal-article","created":{"date-parts":[[2015,5,6]],"date-time":"2015-05-06T05:10:01Z","timestamp":1430889001000},"page":"588-599","source":"Crossref","is-referenced-by-count":21,"title":["Dental, skeletal asymmetries and functional characteristics in Class <scp>II<\/scp> subdivision malocclusions"],"prefix":"10.1111","volume":"42","author":[{"given":"J.","family":"Li","sequence":"first","affiliation":[{"name":"State Key Laboratory of Oral Disease West China School of Stomatology Sichuan University Chengdu China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Y.","family":"He","sequence":"additional","affiliation":[{"name":"State Key Laboratory of Oral Disease West China School of Stomatology Sichuan University Chengdu 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