scholarly journals Validation of analysis of masticatory muscle activities using mfMRI ~A correlation with the integrated electromyogram~

2017 ◽  
Vol 23 (2) ◽  
pp. 144-145
Author(s):  
T. Fujii ◽  
S. Yamaguchi ◽  
M. Watanabe ◽  
Y. Hattori
Keyword(s):  
Masticatory Muscle ◽  
Integrated Electromyogram

(Preprint)

2018 ◽  
Author(s):  
Dr Malathi Dayalan ◽  
Dr Sudeshna Sharma ◽  
Dr Shweta Poovani ◽  
Dr Saher Altaf
Keyword(s):  
Myofascial Pain ◽  
Mouth Opening ◽  
Masticatory Muscles ◽  
Matched Pair ◽  
Masticatory Muscle ◽  
Muscle Disorders ◽  
Occlusal Contact ◽  
Group I ◽  
Group Ii

BACKGROUND Masticatory system is a complex functional unit, primarily engaged in chewing, swallowing and breathing functions, and some parts are involved in taste recognition and determination of food consistency. Sophisticated functional performances of speech and emotional expressions are specifically human qualities. Irregularities in occlusion appears to be the precipitating factor in the pathogenesis of myofascial pain dysfunction syndrome. Tek- Scan III records the bite length, number, distribution, timing, duration and the relative force of each tooth contact. It also records the sequence of occlusal contacts in terms of time and the associated force with each occlusal contact. The aim of this study was to treat masticatory muscle disorders with occlusal equilibration, and compare the efficacy of treatment outcomes between selective grinding and stabilization splints using Tek-Scan III. OBJECTIVE Objective of this study was to compare the efficacy of occlusal equilibration achieved through selective griding and stabilization splints using Tek-Scan III. METHODS In this in vivo study, 40 patients with masticatory muscle disorders were selected based on the inclusion and exclusion criteria. The occlusal discrepancies were analyzed using Tek-Scan III. The selected 40 subjects were then randomly divided into 2 groups based on the treatment they recieved; Group I – Selective grinding group (20) and Group II – Stabilization splint group (20). Comparison of pre-treatment and post treatment results were evaluated in terms of pain, mouth opening, left and right side force percentage as recorded through Tek-Scan III and reduction of disclusion time. Statistical analysis was carried out with Kolmogorov Smirnov test, Wilcoxon matched pair test and Mann-Whitney U test. RESULTS Wilcoxon matched pairs test demonstrated that there was statistically significant results ( p = 0.0007) in both the groups for reduction of disclusion time, elimination of pain and improved mouth opening. Patients in Group I showed better results as compared to Group II in terms of disclusion time, pain and mouth opening. CONCLUSIONS Occlusal equilibration brought about by reducing the disclusion time using the Tek- Scan III reduced the symptoms of pain in masticatory muscles. Patients in group I (Selective grinding) however showed better results when compared to patients in group II (Stabilization splints).

Possible difficult laryngoscopy caused by masticatory muscle tendon-aponeurosis hyperplasia: we anesthesiologists should be aware of this disease

2010 ◽  
Vol 24 (6) ◽  
pp. 930-931 ◽  
Author(s):  
Satoki Inoue ◽  
Ikumi Yamamoto ◽  
Shinichi Ikeda ◽  
Masahiko Kawaguchi ◽  
Tetsuji Kawakami ◽  
...  
Keyword(s):  
Difficult Laryngoscopy ◽  
Masticatory Muscle

Masticatory muscle architectural correlates of dietary diversity in Canidae, Ursidae, and across the order Carnivora

2021 ◽  
Author(s):  
Adam Hartstone‐Rose ◽  
Edwin Dickinson ◽  
Ashley R. Deutsch ◽  
Nikole Worden ◽  
Gabrielle A. Hirschkorn
Keyword(s):  
Dietary Diversity ◽  
Masticatory Muscle

A High Masticatory Muscle Tone Predicts the Risk of Malnutrition and Frailty in Inpatient Older Adults: A Cross-Sectional Study

Gerontology ◽  
2021 ◽  
pp. 1-7
Author(s):  
Yin-Hwa Shih ◽  
Zhen-Rong Hong ◽  
Shih-Min Hsia ◽  
Shang-Yu Yang ◽  
Tzong-Ming Shieh
Keyword(s):  
Older Adults ◽  
At Risk ◽  
Nutritional Status ◽  
Masseter Muscle ◽  
Muscle Tone ◽  
Handgrip Strength ◽  
Muscle Performance ◽  
Masticatory Muscle ◽  
Masticatory Performance ◽  
Poor Nutritional Status

<b><i>Introduction:</i></b> The prevalence of malnutrition among inpatient older adults is as high as 20∼50%. Masticatory performance is known to affect the nutritional status of individuals. However, an objective measurement to reflect the real status of masticatory muscle performance is lacking at the bedside. <b><i>Methods:</i></b> This pilot study analyzed the masticatory performance using surface electromyography (sEMG) of masticatory muscles that measures both muscle strength and muscle tone at the bedside. The nutritional status was measured using the Mini Nutritional Assessment tool. The handgrip strength was measured using a hand dynamometer. The statistical data were analyzed using SPSS 25 software. <b><i>Results:</i></b> The data revealed that female inpatient older adults more frequently had substandard handgrip strength (<i>p</i> = 0.028), an at-risk and poor nutritional status (<i>p</i> = 0.005), and a higher masseter muscle tone (<i>p</i> = 0.024). Inpatient older adults with an at-risk and poor nutritional status had an older age (<i>p</i> = 0.016), lower handgrip strength (<i>p</i> = 0.001), and higher average masseter muscle tone (<i>p</i> = 0.01). A high masseter muscle tone predicted the risk of having an at-risk and poor nutritional status. The at-risk or poor nutritional status predicted having a substandard handgrip strength by 5-fold. <b><i>Conclusions:</i></b> A high masticatory muscle tone predicts malnutrition and frailty. Medical professionals should combat masticatory dysfunction-induced malnutrition by detecting masticatory muscle performance using sEMG and referring patients to dental professionals. Additionally, encouraging inpatient older adults to perform oral motor exercise is recommended.

Comparison of masticatory muscle myofascial pain in patients with and without a chief complaint of headache

CRANIO® ◽  
2014 ◽  
Vol 32 (1) ◽  
pp. 57-62 ◽  
Author(s):  
Hiroyuki Karibe ◽  
Greg Goddard ◽  
Masakazu Okubo
Keyword(s):  
Myofascial Pain ◽  
Chief Complaint ◽  
Masticatory Muscle

scholarly journals Masticatory muscle activity in dentition with experimentally reduced occlusal contacts during mastication

2015 ◽  
Vol 7 (3) ◽  
pp. 240-248
Author(s):  
Shintaro Minami ◽  
Masahiko Kikuchi ◽  
Tomofumi Sakamoto ◽  
Masaaki Iwamatsu
Keyword(s):  
Muscle Activity ◽  
Masticatory Muscle ◽  
Masticatory Muscle Activity
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