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The influence of maxillary and mandibular osteoporosis on maximal bite force and thickness of masticatory muscles
Vasconcelos, Paulo B; Palinkas, Marcelo; de Sousa, Luiz G; Regalo, Simone C. H; Santos, Carla M; de Rossi, Moara; Semprini, Marisa; Scalize, Priscilla H; Siéssere, Selma.
  • Vasconcelos, Paulo B; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • Palinkas, Marcelo; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • de Sousa, Luiz G; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • Regalo, Simone C. H; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • Santos, Carla M; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • de Rossi, Moara; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • Semprini, Marisa; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • Scalize, Priscilla H; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
  • Siéssere, Selma; University of São Paulo. Ribeirão Preto Dental School. Department of Morphology, Physiology and Basic Pathology. Ribeirão Preto. BR
Acta odontol. latinoam ; 28(1): 22-27, Apr. 2015. tab
Article Dans Anglais | LILACS | ID: biblio-949685
ABSTRACT
The aim of this study was to examine the bite force and masseter and temporal muscle thickness in individuals with maxillary and mandibular osteoporosis. 72 individuals were distributed into two equal groups (1) facial osteoporosis and (2) healthy controls. Bite force on the right and left molar regions was recorded with a dynamometer and the highest value out of three measurements was recorded as the maximal bite force. Muscle thickness was measured with a SonoSite Titan ultrasound scanner. Ultrasound images were obtained of the bilateral masseter and temporal muscles at rest and at maximal voluntary contraction. The means of the measurements in each clinical condition were analyzed with multivariate statistical analysis (SPSS 19.0). Student's t test indicated no significant difference for muscle thickness, but indicated significantly lower bite force values in the osteoporosis group (p>0.05). Lower bite force in individuals with facial bone loss demonstrates functional impact of osteoporosis on the complex physiological stomatognathic system.
RESUMO
Este estudo teve como objetivo analisar a forca de mordida e a espessura dos musculos masseter e temporal em individuos com osteoporose maxilar e mandibular. 72 individuos distribuidos em dois grupos equivalentes (1) osteoporose facial e (2) controles saudaveis. Forca de mordida nas regioes de molar direita e esquerda foi gravada com o dinamometro e o valor mais alto das tres medidas foi registrado como a forca de mordida maxima. A espessura muscular foi mensurada com ultrassom SonoSite Titan. As imagens de ultrassom foram obtidas dos musculos masseter e temporais bilateral em repouso e em contracao voluntaria maxima. As medias das medidas em cada condicao clinica foram analisadas com a analise estatistica multivariada (SPSS 19.0). Teste t de Student nao revelou diferencas significativas para a espessura musculos, mas indicou valores significativamente mais baixos de forca de mordida no grupo com osteoporose (p> 0,05). Forca de mordida menor em individuos com perda ossea facial demonstra um impacto funcional da osteoporose na fisiologia complexa do sistema estomatognatico.
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Texte intégral: Disponible Indice: LILAS (Amériques) Sujet Principal: Ostéoporose / Maladies mandibulaires Limites du sujet: Humains langue: Anglais Texte intégral: Acta odontol. latinoam Thème du journal: Dentisterie Année: 2015 Type: Article Pays d'affiliation: Brésil Institution/Pays d'affiliation: University of São Paulo/BR

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Texte intégral: Disponible Indice: LILAS (Amériques) Sujet Principal: Ostéoporose / Maladies mandibulaires Limites du sujet: Humains langue: Anglais Texte intégral: Acta odontol. latinoam Thème du journal: Dentisterie Année: 2015 Type: Article Pays d'affiliation: Brésil Institution/Pays d'affiliation: University of São Paulo/BR