Estevam Barbosa de Las Casas

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PURPOSE The purpose of this study is to validate a model for the analysis of the load distribution through the wrist joint, subjected to forces on the axes of the metacarpals from distal to proximal for two different mesh densities. METHOD To this end, the Rigid Body Spring Model (RBSM) method was used on a three-dimensional model of the wrist joint,(More)
Teachers are professionals with high prevalence of dysphonia, whose main risk factors are the large work hours in classrooms with the presence of background noise. The purpose of the study was to calculate the phonation time and the cycle dose of teachers with dysphonia and teachers without voice disorders during the class. There were two groups analyzed:(More)
Oral forces applied to human teeth during biting and mastication are normally described in the literature only in terms of their axial components. The purpose of this study was to fully determine the spatial characteristics of the oral resultant force - its normal and tangential components - for a given individual. A load cell was especially manufactured to(More)
PURPOSE To verify the association of tongue clinical evaluation aspects with quantitative evaluation of tongue force. METHODS A cross-sectional study was conducted with 48 healthy adults, 13 men and 35 women (ages 20-44 years; mean - M=24.8 years; standard deviation - SD=5.3 years). By clinical evaluation, the following aspects were checked: tongue force,(More)
Faculdade de Medicina, Universidade Federal de Minas Gerais – UFMG Belo Horizonte (MG), Brasil. (2) Departamento de Engenharia de Estruturas da Escola de Engenharia, Universidade Federal de Minas Gerais – UFMG Belo Horizonte (MG), Brasil. (3) Departamento de Estatística do Instituto de Ciências Exatas da Universidade Federal de Minas Gerais – UFMG Belo(More)
Tooth movement for correcting functional occlusion, main purpose of the Orthodontics, is clinically obtained through the application of light, but continuous forces imposed by an orthodontic system composed by archwires and brackets, which are attached to the teeth. The load-release system should behave elastically over the period of the treatment, ranging(More)
A geometrically nonlinear formulation for composites and the derived explicit dynamic finite element program are presented. The relevant variables at each time step are mapped into an equivalent isotropic space, where the integration of the rate constitutive equations is performed. The evolution of the internal variables is calculated in the mapped spaces,(More)