Objective: This study was analyzed adult individuals rehabilitated with different types of dentures, with the purpose of verifying the effect that different types of denture rehabilitation have on maximal bite force and masticatory efficiency. The aim of this study is to facilitate diagnosis and prognosis, bringing contributions to the quality and stability of treatments Materials and Methods: Fifty individuals were divided into five groups: one control group with ten dentate individuals and another four groups formed according to the type of rehabilitation treatment. Maximal bite force was recorded on the first molar regions, and masticatory efficiency rates were recorded on the right, left and habitual sides. Results: Data related to the maximal bite force recordings were statistically significant across the analyzed groups [ANOVA for p ≤ 0.01]. The data related to masticatory efficiency rates also showed statistical significance across all groups [ANOVA for p ≤ 0.05] in the three tested conditions [mastication on the right, left and habitual sides]. Conclusion: The group of individuals rehabilitated with implants and single crowns showed greater bite force values and masticatory efficiency rates compared to the other groups, and the treatment with implantsupported mandibular overdenture improved the function compared to conventional complete dentures, thus evincing that the stomatognathic system has different functional behaviors depending on the type of oral rehabilitation

Children with borderline orthodontic treatment needs show functional disorders of the stomatognathic system.

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The objective of this study was to investigate the effects of maternal breastfeeding, artificial feeding, types of introduction of complementary food introduction and the use of bottle and pacifier on lip /tongue pressure and maximum molar bite force of school children. Thirty-five healthy children with mixed dentition (20 boys and 15 girls), aged 6-10 years, participated in this study. The children were evaluated based on anthropometry, electronic scale and portable stadiometer, feeding practices (breastfeeding, artificial feeding, introduction of complementary food), bottle and pacifier use, tongue and lips strength and molar bite force. The results were submitted to ANOVA (p <.05). The sample showed a predominance of children with adequate height and weight for age. In the analysis of the influence of the food introduction period, the complementary food consistency and the pacifier use; it was observed that these factors did not influence the pressures of the lips/tongue statistically. In the evaluation of the influence of bottle feeding, the data showed higher bite force for children who never used the bottle, statistically significant data for the right and left sides (p ≤ .003 and p ≤ .001, respectively). The authors suggest that the type of breastfeeding received by the children may have a negative impact on the stomatognathic system functioning, evidenced by the lower maximum molar bite force found in the bottle-fed children. Keywords: Breast Feeding. Bottle Feeding. Bite Force. ResumoO objetivo deste estudo foi investigar os efeitos do aleitamento materno, alimentação artificial, tipos de introdução complementar de alimentos e uso de mamadeira e chupeta na pressão labial / lingual e força máxima de mordida molar em crianças em idade escolar. Participaram 35 crianças saudáveis com dentição mista (20 meninos e 15 meninas), com idades entre 6 e 10 anos. As crianças foram avaliadas com base em antropometria, balança eletrônica e estadiômetro portátil, práticas de alimentação (amamentação, alimentação artificial, introdução de alimentos complementares), uso de mamadeira e chupeta, força da língua e lábios e força de mordida molar. Os resultados foram submetidos à ANOVA (p < 0,05). A amostra demonstrou predominância de crianças com altura e peso adequados para a idade. Na análise da influência do período de introdução dos alimentos, da consistência do alimento complementar e do uso de chupeta, observou-se que esses fatores não influenciaram estatisticamente as pressões dos lábios / língua. Na avaliação da influência da mamadeira, os dados mostraram maior força de mordida para crianças que nunca usaram a mamadeira, dados significativos para os lados direito e esquerdo (p ≤ 0,003 ep ≤ 0,001, respectivamente). Os autores sugerem que o tipo de aleitamento materno recebido pelas crianças pode ter impacto negativo no funcionamento do sistema estomatognático, evidenciado pela menor força máxima de mordida molar encontrada nas crianças alimentadas com mamadeira. Palavras-chave: Aleitamento Materno. Alimentação Artificial Força de Mordida

Musculoskeletal system impairment is a major cause of functional alterations in subjects with systemic sclerosis. Autologous hematopoietic stem cell therapy (AHSCT) may have an important role in the treatment functional of systemic sclerosis patients. The aim of this pilot study was to assess whether AHSCT interferes with the electromyographic activity of the masseter and temporalis muscles of subjects with systemic sclerosis. Before transplantation, seven subjects with systemic sclerosis (mean age [± SD], 40.1 ± 9.6 years) underwent electromyographic analysis of the masseter and temporalis muscles in mandibular tasks at rest, right and left laterality, protrusion and maximum voluntary contraction. Two months after AHSCT, the subjects re-evaluated using the same methods. Data were analyzed using the repeated-measure test, with p<0.05 considered to be statistically significant. Two months after AHSCT, there was reduction in normalized electromyographic activity in the dental clenching in maximal voluntary contraction, with significant differences, for the left temporal muscle (p=0.04). AHSCT in subjects with systemic sclerosis promotes alterations in stomatognathic system function, especially those related to electromyographic activity of masticatory muscles.

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Crossfit ® : uma abordagem sobre força de mordida e imagem ultrassonográfica dos músculos mastigatórios.