Assessment of masticatory performance, bite force, orthodontic treatment need and orofacial dysfunction in children and adolescents

Autor(es)

Salome Marquezin, Maria Carolina ^[1] ; Kobayashi, Fernanda Yukie ^[1] ; Marangoni Montes, Ana Bheatriz ^[1] ; Duarte Gavido, Maria Beatriz ^[1] ; Castelo, Paula Midori ^[2]

Afiliação do(s) autor(es)

^[1] Univ Campinas UNICAMP, Piracicaba Dent Sch, Dept Pediat Dent, Piracicaba - Brazil

^[2] Univ Fed Sao Paulo UNIFESP, Dept Ciencias Biol, BR-09913030 Diadema, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: ARCHIVES OF ORAL BIOLOGY; v. 58, n. 3, p. 286-292, MAR 2013.
• Citações Web of Science: 24

Resumo

Objectives: Few studies have evaluated the relationship between morphological and functional characteristics of the masticatory apparatus in young subjects. Thus, the aim of this study was to evaluate masticatory performance (MP), maximal bite force (BF), orthodontic treatment need and orofacial dysfunction in children and adolescents. Design: The sample consisted of 316 subjects of both genders, with an age range 6-16 years divided into 4 groups: early mixed, intermediate mixed, late mixed and permanent dentition. MP was evaluated by the individual's ability to comminute a chewable test material in order to determine median particle size (X-50) and distribution of particles in different sieves ({''}b{''}). BF was determined using a digital gnatodynamometer with fork strength of 10 mm. Orofacial function and orthodontic treatment need were screened using the Nordic Orofacial Test-Screening (NOT-S) protocol and Index of Orthodontic Treatment Need (IOTN), respectively. The results were submitted to descriptive statistics, normality test, analysis of variance and stepwise multiple linear regression to test relationship between MP and studied independent variables. Results: Variance of X-50 and b between groups was statistically significant. But evaluation of variables that significantly contributed to MP variation showed that age, body mass index (BMI), BF and the presence of sleep bruxism were negatively related to X-50 and the NOT-S clinical exam scores showed a positive relationship with X-50. Conclusion: In the studied sample, age, BMI, BF and the presence of sleep bruxism were related to better MP; but the increase in NOT-S scores was significantly related to poorer MP. (C) 2012 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 10/06016-8 - Avaliação das disfunções orofaciais e temporomandibulares, parâmetros mastigatórios e níveis salivares de cortisol e alfa-amilase em crianças e adolescentes
• Beneficiário: Maria Beatriz Duarte Gavião
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 10/01313-4 - Relação entre oclusão, morfologia craniofacial, performance mastigatória e disfunção orofacial em crianças e adolescentes.
• Beneficiário: Maria Carolina Salomé Marquezin
• Modalidade de apoio: Bolsas no Brasil - Mestrado