<b>Effects of masticatory muscle training on maximum bite force and muscular endurance</b>

He, Tailun; Stavropoulos, Dimitrios; Hagberg, Catharina; Hakeberg, Magnus; Mohlin, Bengt

doi:10.3109/00016357.2012.734411

Cited by 20 publications

(18 citation statements)

References 29 publications

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“…Several previous studies reported that changes in major masticatory muscle seemed to have a greater impact on masticatory efficiency . However, mastication is a dynamic and complex process caused by a combination of factors such as biting force, masticatory muscle activity, swallowing threshold, as well as intra‐oral status such as salivary secretion and occlusal position .…”

Section: Discussionmentioning

confidence: 99%

Changes in masticatory function after injection of botulinum toxin type A to masticatory muscles

Park

Kim

Kang

et al. 2013

J of Oral Rehabilitation

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This study examined changes in masticatory function after botulinum toxin type A (BTX-A) injection using objective and subjective tests during 12 weeks. Also, we compared differences in masticatory function between group in which only masseter muscle (M group) was injected and group in which masseter and temporal muscle (M-T group) were injected. Forty subjects were assigned into two groups; M group (n = 20) and the M-T group (n = 20). The Meditoxin(®) was used as BTX-A injection. The mixing ability index (MAI) was used as the objective indicator, and visual analogue scale (VAS) and food intake ability (FIA) index were used as subjective indicators. Overall, the masticatory function drastically declined after 4 weeks and gradually recovered with time. Compared with the pre-injection state, the masticatory function decreased by 89·2% (MAI), 12·2% (FIA) and 32·2% (VAS) 4 weeks after the injection (P < 0·05). When the results between M group and M-T group were compared, scores of VAS and FIA were significantly different 4 weeks after the injection (P < 0·05), but the MAI score showed no significant difference between two groups. In conclusion, this study showed that masticatory function was significantly decreased after BTX-A injection into the masticatory muscle after 4 and 8 weeks from injection. However, masticatory efficiency measured using MAI could completely recover after 12 weeks. Furthermore, after 8 weeks from the injection, the masticatory function measured after injection into only the masseter muscle was similar to that measured after injection into both masseter and temporal muscle.

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Section: Discussionmentioning

confidence: 99%

Changes in masticatory function after injection of botulinum toxin type A to masticatory muscles

Park

Kim

Kang

et al. 2013

J of Oral Rehabilitation

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“…The influence of training is a fundamental issue that would be worth exploring further. Indeed, exercise can improve masticatory function (Bourke et al, 2008;He et al, 2013;Kiliaridis et al, 1995;Kim et al, 2018;Lindner et al, 1995;Shirai et al, 2018;Thompson et al, 2001) but few studies have investigated this in detail.…”

Section: Determinants Of Bite Forcementioning

confidence: 99%

Bite force and its relation to jaw shape in domestic dogs

Brassard

Merlin

Guintard

et al. 2020

Journal of Experimental Biology

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Previous studies based on two-dimensional methods have suggested that the great morphological variability of cranial shape in domestic dogs has impacted bite performance. Here, we used a three-dimensional biomechanical model based on dissection data to estimate the bite force of 47 dogs of various breeds at several bite points and gape angles. In vivo bite force for three Belgian shepherd dogs was used to validate our model. We then used three-dimensional geometric morphometrics to investigate the drivers of bite force variation and to describe the relationships between the overall shape of the jaws and bite force. The model output shows that bite force is rather variable in dogs and that dogs bite harder on the molar teeth and at lower gape angles. Half of the bite force is determined by the temporal muscle. Bite force also increased with size, and brachycephalic dogs showed higher bite forces for their size than mesocephalic dogs. We obtained significant covariation between the shape of the upper or lower jaw and absolute or residual bite force. Our results demonstrate that domestication has not resulted in a disruption of the functional links in the jaw system in dogs and that mandible shape is a good predictor of bite force.

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“…In a study by Kim et al [47], the MAI was significantly increased after only 8 weeks of simple oral exercises; further, Morita et al [23] reported that masticatory performance is associated with the muscle power of the whole body. Therefore, strengthening the muscle function of the oral and maxillofacial region will improve not only masticatory performance [48] but also the overall physical performance of the elderly [2].…”

Section: Discussionmentioning

confidence: 99%

Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study

Kim

2021

IJERPH

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While appropriate nutrient intake is important for older adults, various oral problems cause decreased masticatory function. This cross-sectional study aimed to identify the factors associated with decreased masticatory performance in older adults. Oral examinations were performed on 80 participants (mean age: 75.10 ± 5.64 years) to determine the number of functional tooth units (FTUs). Symptoms of periodontal and temporomandibular diseases were evaluated via a questionnaire. The tone, elasticity, and dynamic stiffness of the masseter muscle were measured using the Myoton® PRO device. The mixing ability test was used to assess the masticatory performance, and the mixing ability index (MAI) was calculated. The analysis of covariance test was performed to adjust for confounding factors, and multiple logistic regression analysis was performed to identify the risk factors affecting MAI. A lower MAI was significantly associated with higher tone (p = 0.006) and lower elasticity (p = 0.013). The number of FTUs (adjusted odds ratio (OR) = 0.724, p = 0.029), tone (adjusted OR = 1.215, p = 0.016), and elasticity (adjusted OR = 4.789, p = 0.038) were independently associated with the MAI. Muscle function training and prosthetic treatments may help increase masticatory performance in older adults, which would improve overall health.

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Effects of masticatory muscle training on maximum bite force and muscular endurance

Abstract: For both the continuous and intermittent training groups, 4 months of chewing exercises strengthened masticatory muscles, but such effects diminished gradually for both groups when the exercises stopped.

Cited by 20 publications

References 29 publications

Changes in masticatory function after injection of botulinum toxin type A to masticatory muscles

Changes in masticatory function after injection of botulinum toxin type A to masticatory muscles

Bite force and its relation to jaw shape in domestic dogs

Influential Factors of Masticatory Performance in Older Adults: A Cross-Sectional Study

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