Effect of jaw functional status on neck muscle endurance

Zafar, Hamayun; Alghadir, Ahmad H.; Iqbal, Zaheen A.

doi:10.1016/j.archoralbio.2019.03.001

Cited by 5 publications

(9 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…descending pathways from the central nervous system through various mechanisms via an increase in distal muscle strength, neck muscle endurance, and postural stability (Alghadir et al, 2015;Ebben et al, 2010;Zafar et al, 2019). Our results also show that besides the effect on gross motor functions, jaw positions also have an effect on the fine motor functions.…”

Section: Discussionsupporting

confidence: 62%

“…While the higher order processes include activation of intensions, semantic retrieval, and syntactic construction, the low order processes involve allograph selection, size control, and muscle adjustment (Vangalen, 1991). The clenched jaw position affects various descending pathways from the central nervous system through various mechanisms via an increase in distal muscle strength, neck muscle endurance, and postural stability (Alghadir et al, 2015; Ebben et al., 2010; Zafar et al., 2019). Our results also show that besides the effect on gross motor functions, jaw positions also have an effect on the fine motor functions.…”

Section: Discussionmentioning

confidence: 99%

“…Participants were asked to write "happy new year" in their own normal cursive handwriting in three test jaw positions while standing on firm and unstable (a 50 × 50 × 15-cm foam block) surfaces. In the first jaw position, no instructions were given Zafar et al, 2017;Zafar et al, 2019). Three trials for each condition were recorded in a random order, and their mean values were used in the data analyses.…”

Section: Methodsmentioning

confidence: 99%

“…In the second jaw position, participants were asked to open their jaw throughout the test (open jaw). In the third jaw position, participants were asked to clench their teeth throughout the test (clenched jaw) (Ahmad Alghadir et al., 2017; Alghadir et al, 2015; Zafar et al., 2017; Zafar et al., 2019). Three trials for each condition were recorded in a random order, and their mean values were used in the data analyses.…”

Section: Methodsmentioning

confidence: 99%

See 3 more Smart Citations

Can jaw position affect the fine motor activity of the hand during writing?

2020

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Discussionsupporting

confidence: 62%

Section: Discussionmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

See 2 more Smart Citations

Can jaw position affect the fine motor activity of the hand during writing?

2020

Self Cite

View full text Add to dashboard Cite

show abstract

“…Functional restoration of chewing activities treated by denture wearing has been evaluated from various viewpoints, such as chewing ability [1,2], chewing movements and muscle activities [1][2][3][4], food choice and nutrition [5][6][7], and oral and physical quality of life [6,8,9]. Nevertheless, the effects of denture wearing on the coordinated features of jaw and neck muscles remain unclear in partially edentulous patients, though those muscle activities have been simultaneously examined in healthy dentate subjects during chewing [10][11][12][13], jaw clenching [11,14,15], and opening and closing jaw movements [16,17].…”

Section: Introductionmentioning

confidence: 99%

Effects of denture wearing on coordinated features of jaw and neck muscle activities during chewing in partially edentulous elderly patients

et al. 2021

View full text Add to dashboard Cite

This study was performed to examine how denture wearing improves jaw and neck muscle coordination during chewing in partially edentulous elderly patients. Methods: Sixteen patients classified as Eichner's index B2 or B3 and 16 young dentate subjects were enrolled. Jaw and neck muscle activities during chewing were recorded using electromyography with and without denture wearing, then analyzed using intermuscular Electromyography (EMG)-EMG transfer and EMG-EMG coherence function analyses to clarify quantitative, temporal, and functional coordination of jaw and neck muscle activities while chewing. Occlusal force and masticatory scores were also determined. Results: Denture wearing increased the power values for jaw closing muscle activities, and improved occlusal area and force, and masticatory score. Gain values for jaw closing and opening muscle activities were decreased in those wearing dentures compared to those not wearing dentures. Denture wearing resulted in equivalent gain values for jaw closing and opening muscle activities as compared to the young subjects. Coherence values for chewing and non-chewing side neck muscle activities were increased as compared to not denture wearing. Conclusions: The suitability of denture wearing can be evaluated from the viewpoint of gain as a quantitative parameter showing coordination between jaw closing and opening muscle activities. Such evaluation can be performed from the viewpoint of coherence as a parameter of functional coordination between jaw and neck muscle activities during chewing in partially edentulous elderly patients. The gain parameter in regard to jaw muscle activities may be compensated to a state equivalent to that seen in young subjects by wearing an appropriate denture.

show abstract

Influence of different jaw positions on dynamic balance using Y‐balance test

et al. 2019

View full text Add to dashboard Cite

BackgroundJaw sensory‐motor system has been shown to affect static balance of the body. It would be interesting to know whether it can influence dynamic balance as well. The objective of this study is to examine the influence of different jaw positions on dynamic balance using the Y‐balance test.MethodsEighty healthy male participants aged 20–35 years were invited to participate in this study. Dynamic balance was measured by the Y‐balance test in three directions (anterior, posteromedial, and posterolateral) for each leg separately in three jaw positions: resting jaw (control), open‐jaw, and clenched jaw.ResultsThere were no significant differences in reach distances between the different jaw positions except in the posterolateral direction. In comparison with resting jaw position, reach distance was significantly higher in open‐jaw position for the right leg and in clenched and open‐jaw positions for the left leg in the posterolateral direction.ConclusionsAlthough various studies have shown direct or indirect influence of jaw sensory‐motor system on static postural control, results of this study point to limited relation with dynamic postural control among healthy subjects. However, it supports the potential of the jaw sensory‐motor system to affect motor control during functional tasks in patients with postural instability or similar disorders.

show abstract

Effect of jaw functional status on neck muscle endurance

Cited by 5 publications

References 40 publications

Can jaw position affect the fine motor activity of the hand during writing?

Can jaw position affect the fine motor activity of the hand during writing?

Effects of denture wearing on coordinated features of jaw and neck muscle activities during chewing in partially edentulous elderly patients

Influence of different jaw positions on dynamic balance using Y‐balance test

Contact Info

Product

Resources

About