Maxillomandibular arch width differences at estimated centers of resistance: Comparison between normal occlusion and skeletal Class III malocclusion

Korean Journal of Orthodontics
Yun-Jin KooKee-Joon Lee

Abstract

To evaluate the differences in maxillomandibular transverse measurements at either the crown or the estimated center of resistance (CR), and to compare values between normal occlusion and Class III malocclusion groups. Dental casts and computed tomography (CT) data from 30 individuals with normal occlusion and 30 with skeletal Class III malocclusions were evaluated. Using the casts, dental arch widths (DAWs) were measured from the cusp tips, and basal arch widths (BAWs-cast) were measured as the distance between the points at the mucogingival junction adjacent to the respective cusp tips. The BAWs determined from CT (BAWs-CT) images were measured from the estimated CRs of the teeth. None of the DAW measurements or maxillomandibular DAW differences showed statistically significant intergroup differences. In contrast, the maxillary BAWs-CT and BAWs-cast were lesser in the Class III malocclusion group than in the normal occlusion group. The mandibular BAWs-CT were significantly greater in the Class III malocclusion group than in the normal occlusion group. Moreover, the maxillomandibular BAW differences on both CT and cast showed significant intergroup differences in all transverse measurements. The maxillomandibular DAW differenc...Continue Reading

References

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Citations

Aug 18, 2020·Journal of Forensic Dental Sciences·Pallavi RainaRomil Shah
Jun 20, 2020·Clinical and Experimental Dental Research·Yeo-Kyeong Lee, Youn-Sic Chun
Dec 5, 2020·Orthodontics & Craniofacial Research·Sung-Hwan ChoiChung-Ju Hwang
Mar 17, 2021·American Journal of Orthodontics and Dentofacial Orthopedics : Official Publication of the American Association of Orthodontists, Its Constituent Societies, and the American Board of Orthodontics·Chun-Xi ZhangDong-Xu Liu
May 14, 2021·Korean Journal of Orthodontics·Harim KimKee-Joon Lee

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Methods Mentioned

BETA
X-ray

Software Mentioned

InVivoDental®
SPSS Statistics

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