Evaluation of mandibular motion in adolescents with skeletal class II division 1 malocclusion during mandibular advancement using clear functional aligners: a prospective study.
Background: This study aimed to evaluate the characteristics of mandibular protrusive condylar trajectory in adolescents with skeletal Class II Division 1 malocclusion and the changes of condylar trajectory during mandibular advancement (MA) treatment using clear functional aligners. Methods: This p...
| Publicado en: | BMC Oral Health Vol. 24; no. 1; pp. 1 - 16 |
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| Autores principales: | , , , , , , , |
| Formato: | diagnostic images glossary pictorial research tables/charts Journal Article |
| Publicado: |
BioMed Central
3/9/2024
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| Acceso en línea: | Ver este registro en EBSCOhost |
| fields | @attributes: recordID: 1 pdfLink: plink: https://search.ebscohost.com/login.aspx?direct=true&db=ccm&AN=175931126&site=ehost-live header: @attributes: shortDbName: ccm uiTerm: 175931126 longDbName: CINAHL Complete uiTag: AN controlInfo: bkinfo: dissinfo: jinfo: jid: 14726831 1CIC jtl: BMC Oral Health issn: 14726831 maglogo: N pubinfo: dt: 3/9/2024 vid: 24 iid: 1 pid: 24147 pub: BioMed Central artinfo: ui: 175931126 175931126 175931126 10.1186/s12903-024-04082-3 175931126 ppf: 1 ppct: 15 formats: tig: atl: Evaluation of mandibular motion in adolescents with skeletal class II division 1 malocclusion during mandibular advancement using clear functional aligners: a prospective study. aug: au: Wu, Qiuyue Zhang, Yueying Xiao, Hua Zheng, Jiajing Jiang, Tianlu Du, Yusen Cao, Meng Li, Feifei affil: https://ror.org/00ms48f15 State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, Shaanxi Clinical Research Center for Oral Diseases, Department of Orthodontics, National Clinical Research Center for Oral Diseases, The Third Affiliated Hospital of Air Force Medical University, 710032, Xi'an, Shaanxi, People's Republic of China sug: subj: Surgery, Oral Methods Malocclusion Therapy Orthodontic Appliances Equipment and Supplies Temporomandibular Joint Diseases Therapy Oral Health Mandible Physiology Motion Human Male Female Child Adolescence Prospective Studies Cross Sectional Studies Cephalometry Temporomandibular Joint Dental Care Descriptive Statistics Comparative Studies Mann-Whitney U Test Wilcoxon Rank Sum Test Funding Source Child: 6-12 years Adolescent: 13-18 years Male Female ab: Background: This study aimed to evaluate the characteristics of mandibular protrusive condylar trajectory in adolescents with skeletal Class II Division 1 malocclusion and the changes of condylar trajectory during mandibular advancement (MA) treatment using clear functional aligners. Methods: This prospective study consisted of a cross-sectional study and a longitudinal study. In cross-sectional study, sixty-one adolescents were divided into two groups: Class I (n = 30) and Class II Division 1 (n = 31). The condylar trajectory was measured and compared using the Mann–Whitney U test. The longitudinal study was the MA treatment group using clear functional aligner and consisted of 16 participants from Class II Division 1group. The condylar trajectory was collected at three-time points: pre-treatment (T1), during MA treatment at approximately 3 months (T2, 105.6 days average), and at the end of MA treatment (T3, 237.6 days average). The changes at T1, T2, and T3, as well as the symmetry between the left and right condyles across all groups, were examined using the Wilcoxon paired test. Results: A greater increase in the anteroposterior displacement and space displacement during protrusive movements was observed in the Class II Division 1 group compared with that in the Class I group, with a large difference being observed in the left and right condylar movements. The condylar anteroposterior displacement and space displacement decreased significantly at T2 and increased significantly at T3; however, no significant difference was observed between T1 and T3. A significant difference was observed between the condylar movement on the left and right sides at T1; however, no significant difference was observed at T2 and T3. Conclusions: Adolescents with Class II Division 1 malocclusion had higher protrusive capacity than those with Class I. Moreover, their left and right condylar motion was more asymmetric. The range of condyle motion decreased first and then increased during MA therapy, and the left and right condyle movement became more symmetrical, which may be the adaptive response of neuromuscular function to the changes in jaw position. pubtype: Academic Journal doctype: diagnostic images glossary pictorial research tables/charts Journal Article ougenre: Article language: English refInfo: holdings: @attributes: islocal: N |
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