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1.
J Prosthodont Res ; 61(3): 283-289, 2017 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-27866879

RESUMO

PURPOSE: Due to the bite force importance in functionality of the masticatory system, this study aimed to characterize it in dolichofacial and brachyfacial individuals. METHODS: A sample comprised by 190 patients was divided into two groups: 90 severe dolichofacial, and 100 severe brachyfacial individuals classified according to the VERT index and the face height ratio (Jarabak quotient). Bite force was measured by using an adjusted digital dynamometer and proper methodology. RESULTS: The sample met the parametric assumptions and presented statistical significance when right and left sides of dolichofacial and brachyfacial individuals were compared. However, within the same group, no differences between the left and right sides were found. Generally, bite force was higher for male, left masticator, age between 41-50 years, weighing over 100kg and between 1.81 and 1.90m tall. CONCLUSIONS: Based on the results of this cross-sectional study, it was possible to conclude that the bite force in severe brachyfacial individuals was significantly higher than in severe dolichofacial individuals, being influenced by gender, weight and height.


Assuntos
Força de Mordida , Estatura , Peso Corporal , Face/anatomia & histologia , Mastigação/fisiologia , Caracteres Sexuais , Adolescente , Adulto , Estudos Transversais , Feminino , Humanos , Masculino , Dimensão Vertical , Adulto Jovem
2.
Acta Ortop Bras ; 22(4): 202-5, 2014.
Artigo em Inglês | MEDLINE | ID: mdl-25246850

RESUMO

OBJECTIVES: To examine the cellularity and thickness of the articular cartilage of the femur in rats with arthritis after treatment with iontophoresis. METHODS: To evaluate these objectives, a histological analysis was performed on hematoxylin and eosin, where cellularity and cartilage thickness were observed and evaluated qualitatively and quantitatively by manual counting by 700.09µm² area. RESULTS: The group treated with IAA had normal cellularity (40.1 cells/µm(2)) and maintenance of non-calcified cartilage (75.5µm), suggesting normal thickness. The non-treated group C+, on the other hand, had a lower mean number of chondrocytes (13.0µm(2)) (P <0.05) and, when the cartilage thickness was compared, it showed higher average thickness of calcified cartilage (104.8 mm) and lower mean of non-calcified cartilage (53.3µm). CONCLUSION: The use of iontophoresis with L-ascorbic acid by continuous electric current contributed to a quantitative gain of chondrocytes and improved the thickness distribution of calcified and non-calcified cartilage. Level of Evidence III, Case Control Study.

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