The relationship between masseter muscle thickness measured by ultrasonography and facial profile in young Korean adults

Objective: This study determined the relationship between masseter muscle thickness and overbite values among Nigerians. Methods: The subjects included 66 consecutive patients (21 males and 45 females) who presented for fixed orthodontic appliance treatment. Overbite values were measured from standard lateral cephalometric radiographs taken for all patients,who were thereafter divided into three groups of reduced overbite (n=22, mean -1.11+ 2.18mm), normal overbite (n=22, mean 2.59+0.50mm) and increased overbite (n=22, mean 5.21+1.39mm). The masseter muscle thickness of each patient was measured bilaterally using ultrasonography. Associations between masseter muscle thickness and different overbite values were analyzed using unpaired t-test, ANOVA and Tukey's multiple comparison analysis. Results: Mean masseter muscle thickness was 11.23 ± 2.40 mm during relaxation and 12.81 ± 2.64 mm during contraction for study participants. The masseter muscle on the habitual side of mastication of participants was generally thicker but the difference was not statistically significant (P>0.05). There was a progressive increase in masseter muscle thickness from reduced overbite through normal overbite to increased overbite groups and the differences were statistically significant (P<0.01). Tukey's multiple comparisons showed significant differences between all the three overbite groups (P<0.05). Conclusion: There was a direct relationship between the muscle thickness and overbite variations.

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Ultrasonographic Evaluation of Oral Submucous Fibrosis and Masseteric Hypertrophy

Journal of Clinical Imaging Science ◽

10.4103/2156-7514.124057 ◽

2013 ◽

Vol 3 ◽

pp. 12 ◽

Cited By ~ 3

Author(s):

Jones Raja Devathambi ◽

Nalini Aswath

Keyword(s):

Buccal Mucosa ◽

Masseter Muscle ◽

Muscle Hypertrophy ◽

Oral Submucous Fibrosis ◽

Muscle Thickness ◽

Chi Square ◽

Non Invasive ◽

Chi Square Test ◽

Submucous Fibrosis ◽

The Relationship

Objectives: To evaluate the efficacy of ultrasonography (USG) as a non-invasive tool in assessing the severity of oral submucous fibrosis (OSMF) and also to assess the relationship between OSMF and hypertrophy of the masseter muscle. Materials and Methods: The submucosal thickness in buccal mucosa and masseteric muscle hypertrophy were measured using ultrasound (10-15 MHz) in 60 patients comprising 30 OSMF patients and 30 controls. Results: Results were analyzed by one way analysis of variance, Chi-square test and t-test. As the stages of OSMF advanced there was an increase in submucosal thickness of the buccal mucosa as well as masseter muscle thickness in both relaxed and contracted state in the study group when compared with controls (P < 0.005). Conclusion: USG is an effective non-invasive zero radiation tool for assessing the progression of OSMF.

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The Relationship among Serious Leisure, Leisure Satisfaction and Quality of Life for Older Korean Adults

Korean Journal of Sport Studies ◽

10.23949/kjpe.2017.01.56.1.37 ◽

2017 ◽

Vol 56 (1) ◽

pp. 503-515

Author(s):

Min Seok Lee ◽

Hee Yeob Kang ◽

Chul Won Lee

Keyword(s):

Quality Of Life ◽

Serious Leisure ◽

Leisure Satisfaction ◽

Korean Adults ◽

The Relationship

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Effect of isometric exercises on the masseter muscle in older adults with missing dentition: a randomized controlled trial

Scientific Reports ◽

10.1038/s41598-021-86807-w ◽

2021 ◽

Vol 11 (1) ◽

Author(s):

Satoru Takano ◽

Kohei Yamaguchi ◽

Kazuharu Nakagawa ◽

Kanako Yoshimi ◽

Ayako Nakane ◽

...

Keyword(s):

Older Adults ◽

Masseter Muscle ◽

Controlled Trial ◽

Intervention Group ◽

Muscle Thickness ◽

Control Group ◽

Older Individuals ◽

Muscle Properties ◽

Oral Function ◽

Masticatory Ability

AbstractMaintaining oral function in older individuals with missing teeth is important for leading a healthy and independent life. This study aimed to evaluate whether simple isometric exercises can maintain and improve the oral function [maximum occlusal force (MOF) and masticatory ability (MA)] and the masticatory muscle properties [masseter muscle thickness (MMT) and echo intensity (MMEI)] in older adults during the maintenance phase of removable prosthetic treatment. Participants were randomly categorized into the intervention and control groups. The mouthpieces were distributed, and participants were instructed to use them for exercising. The intervention group was instructed to perform maximum clenching for 10 s, whereas the control group was instructed to tap the teeth at an arbitrary speed for 10 s. Both were repeated five times at an interval of 5 s between each activity and twice daily for 4 weeks. The outcomes were measured after a month of exercise. The intervention group showed a significant improvement in the MOF, MMT during contraction, MMT at rest and MMEI during contraction. There were no significant differences in the MA and MMEI at rest. In the control group, no improvement was observed in any of the parameters. When the isometric exercises were performed using a mouthpiece, there was an improvement in the oral function and masseter muscle properties in older individuals with Eichner B status who used dentures.

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Binge Drinking and Obesity-Related Eating: The Moderating Roles of the Eating Broadcast Viewing Experience among Korean Adults

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18158066 ◽

2021 ◽

Vol 18 (15) ◽

pp. 8066

Author(s):

Jiye Kim ◽

Saegyeol Choi ◽

Hyekyeong Kim ◽

Soontae An

Keyword(s):

Binge Drinking ◽

Online Survey ◽

Eating Behaviors ◽

Inverse Association ◽

Cross Sectional ◽

Korean Adults ◽

External Eating ◽

Drinking Frequency ◽

The Relationship ◽

Viewing Experience

Recently, there has been a notable rise in binge drinking and in the popularity of eating broadcasts via TV and online platforms, especially in Korea. This study analyzed the moderating effect of the eating broadcast viewing experience on the relationship between binge drinking and obesity-related eating behaviors. Cross-sectional self-reported online survey data were collected from 1125 Korean adults. Moderation models for restrained, emotional, and external eating behaviors were tested using moderation analyses with Hayes’s PROCESS version 3.5 compatible with SPSS. As a result, the eating broadcast viewing experience moderated the relationship between binge drinking frequency and external eating (Fchange = 2.686, p = 0.045). More frequent binge drinking was associated with a higher level of external eating in participants who only watched online eating broadcasts, especially among women. Participants in their twenties showed the same above association; additionally, those who only watched TV eating broadcasts showed an inverse association, indicating that more frequent binge drinking was associated with a lower level of external eating. Consequently, an eating broadcast viewing experience was one of the environmental factors associated with binge drinking that influences obesity-related eating behaviors.

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