SciELO - Scientific Electronic Library Online

vol.15 número1In vitro evaluation of root canal preparation using oscillatory and rotary systems in flattened root canalsExamination of temporomandibular disorders in the orthodontic patient: a clinical guide índice de autoresíndice de assuntospesquisa de artigos
Home Pagelista alfabética de periódicos  

Serviços Personalizados




Links relacionados


Journal of Applied Oral Science

versão impressa ISSN 1678-7757versão On-line ISSN 1678-7765


LAS CASAS, Estevam Barbosa de et al. Determination of tangential and normal components of oral forces. J. Appl. Oral Sci. [online]. 2007, vol.15, n.1, pp.70-76. ISSN 1678-7757.

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 measure oral force and was temporarily implanted as a prosthetic device in the dental arch of a volunteer, replacing his missing upper first molar. The mastication and occlusion tests were carried out in such a way the cell should withstand the loads applied to the molar, and its state of strain was recorded by strain gauges attached to it. Based on the results of these tests and using balance equations, normal and tangential components of the resultant oral force were determined. For direct occlusion, without interposition any obstacle between cusps, a peak normal force of 135 N was recorded simultaneously to a tangential force of 44 N. For mastication of biscuits, a peak normal force of 133 N and a tangential force of 39 N were obtained.

Palavras-chave : Dental occlusion; Dental prosthesis; Bite force.

        · texto em Inglês     · Inglês ( pdf epdf )


Creative Commons License Todo o conteúdo deste periódico, exceto onde está identificado, está licenciado sob uma Licença Creative Commons