Biomaterial Database

Evaluation of the electromyographic fatigue of the masseter and temporalis muscles in individuals with osteoporosis. 2019

Veridiana Wanshi Arnoni, and Paulo Batista de Vasconcelos, and Luiz Gustavo de Sousa, and Bruno Ferreira, and Marcelo Palinkas, and Mariah Acioli Righetti, and Gabriel Pádua da Silva, and Solange Aparecida Caldeira Monteiro, and Simone Cecilio Hallak Regalo, and Selma Siéssere

a Department Morphology, Physiology and Basic Pathology, Ribeirão Preto School of Dentistry , University of São Paulo , São Paulo , Brazil.

OBJECTIVE The objective of this study was to evaluate the electromyographic fatigue of the masseter and temporalis muscles in individuals with and without osteoporosis. METHODS Median frequency of the initial, mid, and final periods of the electromyographic signal in the 33 subjects with osteoporosis (OG) and 33 subjects without osteoporosis [control (CG)] was analyzed. RESULTS OG showed a decrease in median frequency along the electromyographic signal, with a significant difference for the right masseter: initial vs. mid periods, initial vs. final periods; left masseter: initial vs. final periods; temporal (right and left): initial vs. mid periods, initial vs. final periods, and mid vs. final periods. Percentage comparison of median frequency between the initial and mid periods and between initial and final periods in the OG showed a significant difference in the masticatory muscles. CONCLUSIONS The findings suggest that osteoporosis is associated with changes in the function of masticatory muscles, especially when measured by electromyographic fatigue.

UI	MeSH Term	Description	Entries
D008297	Male		Males
D008406	Masseter Muscle	A masticatory muscle whose action is closing the jaws.	Masseter Muscles,Muscle, Masseter,Muscles, Masseter
D008875	Middle Aged	An adult aged 45 - 64 years.	Middle Age
D010024	Osteoporosis	Reduction of bone mass without alteration in the composition of bone, leading to fractures. Primary osteoporosis can be of two major types: postmenopausal osteoporosis (OSTEOPOROSIS, POSTMENOPAUSAL) and age-related or senile osteoporosis.	Age-Related Osteoporosis,Bone Loss, Age-Related,Osteoporosis, Age-Related,Osteoporosis, Post-Traumatic,Osteoporosis, Senile,Senile Osteoporosis,Osteoporosis, Involutional,Age Related Osteoporosis,Age-Related Bone Loss,Age-Related Bone Losses,Age-Related Osteoporoses,Bone Loss, Age Related,Bone Losses, Age-Related,Osteoporoses,Osteoporoses, Age-Related,Osteoporoses, Senile,Osteoporosis, Age Related,Osteoporosis, Post Traumatic,Post-Traumatic Osteoporoses,Post-Traumatic Osteoporosis,Senile Osteoporoses
D004576	Electromyography	Recording of the changes in electric potential of muscle by means of surface or needle electrodes.	Electromyogram,Surface Electromyography,Electromyograms,Electromyographies,Electromyographies, Surface,Electromyography, Surface,Surface Electromyographies
D005260	Female		Females
D006801	Humans	Members of the species Homo sapiens.	Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000328	Adult	A person having attained full growth or maturity. Adults are of 19 through 44 years of age. For a person between 19 and 24 years of age, YOUNG ADULT is available.	Adults
D012727	Sex Characteristics	Those characteristics that distinguish one SEX from the other. The primary sex characteristics are the OVARIES and TESTES and their related hormones. Secondary sex characteristics are those which are masculine or feminine but not directly related to reproduction.	Gender Characteristics,Gender Differences,Gender Dimorphism,Sex Differences,Sex Dimorphism,Sexual Dichromatism,Sexual Dimorphism,Characteristic, Gender,Characteristic, Sex,Dichromatism, Sexual,Dichromatisms, Sexual,Difference, Sex,Dimorphism, Gender,Dimorphism, Sex,Dimorphism, Sexual,Gender Characteristic,Gender Difference,Gender Dimorphisms,Sex Characteristic,Sex Difference,Sex Dimorphisms,Sexual Dichromatisms,Sexual Dimorphisms
D013703	Temporal Muscle	A masticatory muscle whose action is closing the jaws; its posterior portion retracts the mandible.	Muscle, Temporal,Muscles, Temporal,Temporal Muscles