PRAGUE MEDICAL REPORT

PRAGUE MEDICAL REPORT
Prague Medical Report je víceoborový biomedicínský časopis publikující původní recenzované vědecké články, přehledové a případové studie a krátké zprávy v angličtině. Časopis založený v roce 1885 jako Sborník lékařský vychází čtyřikrát ročně.

PRAGUE MEDICAL REPORT, Vol 121 No 2 (2020), 87–95

Osteoarthrosis: Analyze of the Molar Bite Force, Thickness and Masticatory Efficiency

Mariah Acioli Righetti, Oswaldo Luiz Stamato Taube, Marcelo Palinkas, Lígia Maria Napolitano Gonçalves, Danilo Stefani Esposto, Edneia Corrêa de Mello, Isabela Hallak Regalo, Simone Cecilio Hallak Regalo, Selma Siéssere

DOI: https://doi.org/10.14712/23362936.2020.7
zveřejněno: 17. 06. 2020

Abstract

Osteoarthrosis is a disorder of synovial joints, resulting from destruction of the cartilage and subchondral bone. The present study is aimed to investigate the molar bite force, thickness and efficiency of the masseter and temporalis muscles of subjects with osteoarthrosis. A total of forty-eight subjects participated in the study. They were distributed into two groups: with osteoarthrosis (n=24) and asymptomatic controls (n=24). Subjects were analyzed on the basis of maximal molar bite force (right and left side), thickness (mandibular rest and dental clenching in maximal voluntary contraction) and electromyographic activity of masticatory cycles through the linear envelope integral in habitual (raisins and peanuts) and non-habitual (Parafilm M) chewing of the masseter and temporalis muscles. All the data were analyzed statistically using t-test with a significance level of p≤0.05. There was no difference between groups in maximal molar bite force, muscle thickness and non-habitual chewing. Differences were found on the raisins (p=0.02) and peanuts (p=0.05) chewing for right temporal muscle, with reduced masticatory muscle efficiency in osteoarthrosis subjects. This study showed that osteoarthrosis induces negative changes in habitual chewing, highlighting the efficiency of the right temporalis muscles. The greater temporal muscle activity in subjects with osteoarthrosis may compromise chewing and consequently the nutritional status of adult subjects.

Klíčová slova: Osteoarthrosis; Bite force; Thickness; Myoelectric activity; Masticatory muscles

Creative Commons License
Osteoarthrosis: Analyze of the Molar Bite Force, Thickness and Masticatory Efficiency is licensed under a Creative Commons Attribution 4.0 International License.

167 x 240 mm
vychází: 4 x ročně
cena tištěného čísla: 450 Kč
ISSN: 1214-6994
E-ISSN: 2336-2936

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