This longitudinal study was aimed to evaluate the electromyographic activity (EMG) of the masticatory muscles during mandibular tasks in women with grade II and III obesity, who were eligible for bariatric surgery. Twenty-one patients were followed up for 3 and 6 months after the Roux-en-Y gastric bypass. The EMG included analyses of the masseter and temporalis muscles during rest, right and left laterality, protrusion, and dental clenching at maximal voluntary contraction with and without parafilm. Data were tabulated and submitted for statistical analysis using the repeated measures test (P<0.05) with the Bonferroni post-test. Significant differences were observed between the right temporal muscle during maximal voluntary contraction (P=0.003) and maximal voluntary contraction with Parafilm M for the right masseter (P=0.01), left masseter (P=0.03), right temporal (P=0.002), and left temporal (P=0.03) muscles. There was gradual decrease in the resting EMG of the masticatory muscles 6 months after surgery. There was an increase in the EMG of the muscles that are the most active in the neuroanatomical movements of laterality and protrusion 6 months after surgery. There was an increase in EMG in maximal voluntary contraction with and without parafilm, 3 and 6 months after surgery. This study suggests that women with severe obesity who underwent bariatric surgery had better functional results of the masticatory muscles 3 and 6 months after the procedure, which is an important parameter in surgical planning, functional recovery, and nutritional status.
- MeSH
- bariatrická chirurgie metody MeSH
- dospělí MeSH
- elektromyografie * metody MeSH
- lidé středního věku MeSH
- lidé MeSH
- longitudinální studie MeSH
- morbidní obezita chirurgie patofyziologie MeSH
- musculus masseter * patofyziologie MeSH
- musculus temporalis * patofyziologie MeSH
- obezita patofyziologie chirurgie MeSH
- svalová kontrakce fyziologie MeSH
- žaludeční bypass metody MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Rheumatoid arthritis and osteoarthritis both affect the articular cartilage, and are characterized by signs and symptoms that can affect the functions of the human body. This cross-sectional observational study evaluated electromyographic activity in the masseter and temporalis muscles, molar bite force, and mandibular mobility in adult women with rheumatoid arthritis or osteoarthritis. A total of 42 women were distributed into 3 groups: rheumatoid arthritis group (ARG, n=14); osteoarthritis group (OAG, n=14); and a healthy control group (CG, n=14). Electromyography was used to evaluate mandibular tasks at rest, right and left laterality, protrusion, and dental clenching during maximum voluntary contraction, with and without parafilm, and a dynamometer was used to analyse the right and left molar bite forces. A digital caliper was used to measure the range of mandibular movement for maximum mouth opening, right and left laterality, and protrusion. Statistical analyses were performed, including analysis of variance and Tukey's test (P<0.05). Electromyography showed no significant differences between the groups when evaluating the masticatory muscles during the mandibular tasks. Significant difference was observed between the ARG and CG, however, in the maximum right (P=0.007) and left (P=0.02) molar bite forces. Significant difference was observed in the maximum mouth opening of the ARG and OAG groups compared with that of the CG (P=0.009), suggesting that adult women with rheumatoid arthritis or osteoarthritis experience functional alterations in the stomatognathic system, particularly in molar bite force and maximum mouth opening.
- MeSH
- dospělí MeSH
- elektromyografie * MeSH
- lidé středního věku MeSH
- lidé MeSH
- mandibula patofyziologie MeSH
- musculus masseter patofyziologie MeSH
- musculus temporalis patofyziologie MeSH
- osteoartróza * patofyziologie diagnóza MeSH
- průřezové studie MeSH
- revmatoidní artritida * patofyziologie MeSH
- senioři MeSH
- síla skusu * MeSH
- studie případů a kontrol MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
- pozorovací studie MeSH
Autoři v kazuistice prezentují případ kavernózního hemangiomu temporálního svalu u 37leté pacientky, která byla na ORL ambulanci vyšetřena pro měkké, oválné, nebolestivé zduření temporální oblasti vlevo. Intramuskulární hemangiom je vzácné onemocnění, které tvoří přibližně 1 % všech hemangiomů. Ve světové literatuře bylo doposud popsáno pouze 34 případů tohoto onemocnění. Diskutována je symptomatologie, patofyziologie, diagnostika a terapeutický postup.
The authors present a case report of a 37-year-old female patient seen at the ENT clinic for a soft oval swelling on the left temporal region Intramuscular haemangioma is a rare diagnosis, accounting for only 1% of all haemangiomas. Only 34 cases of intramuscular haemangioma of the temporal muscle have been described in the world literature. In the case report, the authors describe the diagnostic process, surgical procedure, other therapeutic options, and the follow-up of the patient.
- MeSH
- diferenciální diagnóza MeSH
- dospělí MeSH
- kavernózní hemangiom * chirurgie diagnostické zobrazování patologie terapie MeSH
- lidé MeSH
- musculus temporalis * chirurgie diagnostické zobrazování patologie MeSH
- otorinolaryngologické chirurgické výkony metody MeSH
- počítačová rentgenová tomografie MeSH
- terapeutická embolizace metody MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- ženské pohlaví MeSH
- Publikační typ
- kazuistiky MeSH
- práce podpořená grantem MeSH
Amyotrophic lateral sclerosis is a chronic degenerative disease that affects motor neurons, thereby promoting functional changes in the human body. The study evaluated the electromyographic fatigue threshold of the masseter and temporal muscles of subjects with amyotrophic lateral sclerosis. A total of eighteen subjects were divided into two groups: amyotrophic lateral sclerosis (n=9) and disease-free control (n=9). The groups were equally divided according to gender (7 males, 2 females). The fatigue threshold was analysed using median frequencies obtained during the 5-second window (initial [IP], mid [MP], and final [FP] periods) of electromyographic signalling of the masseter and temporal muscles bilaterally, with reduction in muscle force during maximal voluntary dental clenching. Significant difference (p<0.05) in the left temporal muscle: IP (p=0.05) and MP (p=0.05) periods was demonstrated. The amyotrophic lateral sclerosis group showed a decrease in median frequency of the electromyographic signal of the masseter and temporal muscles compared to the control group. Amyotrophic lateral sclerosis promotes functional impairment of the stomatognathic system, especially at the electromyographic fatigue threshold of the masticatory muscles.
- MeSH
- amyotrofická laterální skleróza * MeSH
- elektromyografie MeSH
- lidé MeSH
- musculus temporalis MeSH
- únava MeSH
- žvýkací svaly MeSH
- Check Tag
- lidé MeSH
- mužské pohlaví MeSH
- ženské pohlaví MeSH
- Publikační typ
- časopisecké články MeSH
Intervertebral disc degeneration is a pathological condition associated with the intervertebral disc and is related to functional alterations in the human body. This study aimed to evaluate the maximum molar bite force and masseter and temporal muscles thickness in individuals with intervertebral disc degeneration. Thirty-two individuals were divided into two groups: those with degeneration of intervertebral discs (n=16) and those without degeneration (n=16). The maximum molar bite force (on the right and left sides) was measured using a dynamometer. Masseter and temporal muscle thickness during mandibular task rest and dental clenching in maximum voluntary contraction were analysed using ultrasound. Significant differences in the left molar bite force (p=0.04) were observed between the groups (Student's t-test, p<0.05). The intervertebral disc degeneration group had a lower maximum molar bite force. No significant differences in muscle thickness were observed between the masseter and temporal muscles in either group. However, based on clinical observations, the group with intervertebral disc degeneration presented less masseter muscle thickness and greater temporal muscle thickness in both mandibular tasks. Degenerative disease of the intervertebral discs promoted morphofunctional changes in the stomatognathic system, especially in maximum molar bite force and masticatory muscle thickness. This study provides insight into the interaction between spinal pathology and the stomatognathic system, which is important for healthcare professionals who treat patients with functional degeneration.
- MeSH
- degenerace meziobratlové ploténky * MeSH
- elektromyografie MeSH
- lidé MeSH
- musculus masseter diagnostické zobrazování MeSH
- musculus temporalis * MeSH
- síla skusu MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
The aim of this study was to evaluate the stomatognathic system of individuals with controlled systemic hypertension through comparison with a disease-free control group. Seventy individuals (44 female and 26 male) were divided into two groups: a controlled systemic hypertension (n=35) and a disease-free control (n=35). The individuals were evaluated on the basis of masticatory cycle efficiency of the value of the ensemble-averaged integrated linear envelope to the electromyographic signal of the masseter and temporalis muscles in the habitual (peanuts and raisins) and non-habitual chewing (Parafilm M); molar bite force (right and left) and ultrasound images from the bilateral masseter and temporal muscles at rest and maximum voluntary contraction. The data obtained were tabulated and submitted to statistical analysis (p<0.05). There was a significant difference between groups in the habitual (peanuts and raisins) and non-habitual (Parafilm M) chewing with reduced muscle activity to controlled systemic hypertension group. Muscle thickness occurred significant difference between groups at rest and maximum voluntary contraction of the temporalis muscles. There was no significant difference between groups in maximum molar bite force. The present study findings indicate that the controlled systemic hypertension promotes functional changes of the masticatory system, especially with respect to its masticatory efficiency and muscle thickness.
- MeSH
- COVID-19 komplikace diagnóza patofyziologie MeSH
- dospělí MeSH
- komplikace diabetu komplikace patofyziologie MeSH
- lidé středního věku MeSH
- lidé MeSH
- musculus masseter patofyziologie MeSH
- musculus temporalis patofyziologie MeSH
- obličejová bolest etiologie patofyziologie terapie MeSH
- SARS-CoV-2 izolace a purifikace MeSH
- senioři MeSH
- Check Tag
- dospělí MeSH
- lidé středního věku MeSH
- lidé MeSH
- mužské pohlaví MeSH
- senioři MeSH
- ženské pohlaví MeSH
- Publikační typ
- dopisy MeSH
- práce podpořená grantem MeSH
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.
- MeSH
- dospělí MeSH
- elektromyografie MeSH
- lidé MeSH
- moláry MeSH
- musculus temporalis MeSH
- osteoartróza * patofyziologie MeSH
- síla skusu * MeSH
- Check Tag
- dospělí MeSH
- lidé MeSH
- Publikační typ
- časopisecké články MeSH
- MeSH
- autologní transplantace metody MeSH
- lidé MeSH
- Moebiův syndrom * chirurgie genetika patologie MeSH
- musculus masseter chirurgie MeSH
- musculus temporalis chirurgie MeSH
- Check Tag
- lidé MeSH
- Publikační typ
- přehledy MeSH
