Evaluation of Changes in Muscle Thickness, Bite Force and Facial Asymmetry during Early Treatment of Functional Posterior Crossbite

Evaluation of Changes in Muscle Thickness, Bite Force and Facial Asymmetry during Early Treatment of Functional Posterior Crossbite

Author Castelo, Paula Midori Autor UNIFESP Google Scholar
Gaviao, Maria Beatriz Duarte Google Scholar
Pereira, Luciano Jose Google Scholar
Bonjardim, Leonardo Rigoldi Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade Estadual de Campinas (UNICAMP)
Universidade Federal de Lavras (UFLA)
Univ Fed Sergipe
Abstract Objective: To determine morphological and functional effects on masticatory system of early treatment of functional posterior crossbite in young children. Study design: 23 children were divided into two groups: deciduous (DecG, n=11) and early mixed dentition (MixG, n=12), which received slow maxillary expansion. Maximal bite force, ultrasonographic masticatory muscle thickness and facial asymmetry were evaluated in three stages: before the start of treatment (s1), after three months of retention (s2), and after three months of observation (s3). The results were analyzed by Mann-Whitney U-test, correlation test, repeated measures ANOVA and backward stepwise multiple regression. Results. Bite force and temporalis thickness increased from s1 to s2 and s3 in both groups (p<0.05). Body mass index (BMI) increased significantly from s1 to s3 only in the MixG, but the masseter thickness did not differ among the stages. The correlation between the angle of the eye and the angle of the mouth in relation to the mid-sagital plane increased from silo s3. Masticatory muscle thickness contributed significantly to bite force magnitude in all stages, whereas age and BMI showed no significant contribution to its variation. Conclusion: Bite force and temporalis muscle thickness increased significantly in children oiler early treatment of functional crossbite.
Keywords Ultrasonography
Bite Force
Face
Malocclusion
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Grant number FAPESP: 01/10442-3
Date 2010-06-01
Published in Journal Of Clinical Pediatric Dentistry. Birmingham: Journal Pedodontics Inc, v. 34, n. 4, p. 369-374, 2010.
ISSN 1053-4628 (Sherpa/Romeo, impact factor)
Publisher Journal Pedodontics Inc
Extent 369-374
Origin https://doi.org/10.17796/jcpd.34.4.656rh557093373k4
Access rights Closed access
Type Article
Web of Science ID WOS:000280929200017
URI http://repositorio.unifesp.br/11600/44321

Show full item record




File

File Size Format View

There are no files associated with this item.

This item appears in the following Collection(s)

Search


Browse

Statistics

My Account