Maximal bite force, facial morphology and sucking habits in young children with functional posterior crossbite

Maximal bite force, facial morphology and sucking habits in young children with functional posterior crossbite

Author Castelo, Paula Midori Autor UNIFESP Google Scholar
Gavião, Maria Beatriz Duarte Google Scholar
Pereira, Luciano José Google Scholar
Bonjardim, Leonardo Rigoldi Google Scholar
Institution Universidade Federal de São Paulo (UNIFESP)
Universidade Estadual de Campinas (UNICAMP)
Federal University of Lavras Department of Physiology
Abstract OBJETIVE: The maintenance of normal conditions of the masticatory function is determinant for the correct growth and development of its structures. Thus, the aims of this study were to evaluate the influence of sucking habits on the presence of crossbite and its relationship with maximal bite force, facial morphology and body variables in 67 children of both genders (3.5-7 years) with primary or early mixed dentition. MATERIAL AND METHODS: The children were divided in four groups: primary-normocclusion (PN, n=19), primary-crossbite (PC, n=19), mixed-normocclusion (MN, n=13), and mixed-crossbite (MC, n=16). Bite force was measured with a pressurized tube, and facial morphology was determined by standardized frontal photographs: AFH (anterior face height) and BFW (bizygomatic facial width). RESULTS: It was observed that MC group showed lower bite force than MN, and AFH/BFW was significantly smaller in PN than PC (t-test). Weight and height were only significantly correlated with bite force in PC group (Pearson's correlation test). In the primary dentition, AFH/BFW and breast-feeding (at least six months) were positive and negatively associated with crossbite, respectively (multiple logistic regression). In the mixed dentition, breast-feeding and bite force showed negative associations with crossbite (univariate regression), while nonnutritive sucking (up to 3 years) associated significantly with crossbite in all groups (multiple logistic regression). CONCLUSIONS: In the studied sample, sucking habits played an important role in the etiology of crossbite, which was associated with lower bite force and long-face tendency.
Keywords Bite force
Sucking behavior
Language English
Sponsor Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
Grant number FAPESP: 01/10442-3
FAPESP: 06/06338-0
Date 2010-04-01
Published in Journal of Applied Oral Science. Faculdade De Odontologia De Bauru - USP, v. 18, n. 2, p. 143-148, 2010.
ISSN 1678-7757 (Sherpa/Romeo, impact factor)
Publisher Faculdade De Odontologia De Bauru - USP
Extent 143-148
Access rights Open access Open Access
Type Article
Web of Science ID WOS:000277832000008
SciELO ID S1678-77572010000200008 (statistics in SciELO)

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