The effect of denture installation at mandibular rest position on unsteady motion of the centre of pressure in postural sway

Yoshino, Noritaka; Nozaki, Kazunori; Maeda, Yoshinobu

doi:10.1111/joor.12400

Cited by 3 publications

(3 citation statements)

References 17 publications

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“…In the ICP condition, participants need to perform slight isometric contraction of the jaw‐closing muscles to keep the upper and lower teeth in contact for 10 s, resulting in fatigue, which can be reflected in an increase in postural sway. Furthermore, we previously postulated that maintaining ICP may result in a decreased efficiency of oxygen intake, due to less ventilation of the airway through a narrower oral cavity, 28 as compared to RP, especially for mouth breathers. Indeed, several previous studies have revealed that breathing conditions affect postural sway, 29 and are related to metabolic energy consumption 30 .…”

Section: Discussionmentioning

confidence: 99%

Occlusal support and postural stability in children: An observational study

Tanaka¹,

Yoshino²,

Sako

et al. 2021

Pediatrics International

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Background The relationship between uneven occlusal contact and fall risk has been described in elderly participants; however, multiple confounding factors, such as systemic disease or deterioration in vestibular function, have not been well considered. This study aimed to investigate this relationship in pediatric participants at the age of approximately 9–12, where these confounding factors are absent and the replacement of primary molars by permanent ones generally occurs and transiently results in uneven occlusal contact. Methods Sixty‐five children (36 boys and 29 girls, mean age: 9.5 ± 1.5 years) were enrolled in this study. Participants were asked whether they had experienced at least two falls within the past 1 year. The occlusal contact area ratio was calculated by dividing the greater half (right or left dental arch) by the smaller half (the other half) with U‐shaped pressure sensor sheet. The total length and rectangular area of the center of pressure while standing upright for 10 s were measured with a stabilometer and used as postural sway parameters. Results The occlusal contact area ratio significantly correlated with the postural sway parameters. Comparison between those who had experienced the fall incidences and those who had not after propensity score matching that adjusts their overall physical function revealed that there were no significant differences in the postural sway parameters and occlusal contact area ratio regardless of the history of fall incidence. Conclusions Uneven occlusal contact leads to an increase in postural sway in children; however, this may not be associated with fall incidence.

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Section: Discussionmentioning

confidence: 99%

Occlusal support and postural stability in children: An observational study

Tanaka¹,

Yoshino²,

Sako

et al. 2021

Pediatrics International

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“…Several studies have shown an association between dental interventions with prosthetic devices and physical function in older adults. Yoshino et al reported that wearing complete dentures may reduce kinetic energy and contribute to postural control 11 . Fujinami et al showed that complete dentures contribute to the suppression of centre of gravity sway in the standing posture, 12 and Theron et al suggested a significant change in head posture at rest between patients with and without complete dentures 13 .…”

Section: Introductionmentioning

confidence: 99%

“…Yoshino et al reported that wearing complete dentures may reduce kinetic energy and contribute to postural control. 11 Fujinami et al showed that complete dentures contribute to the suppression of centre of gravity sway in the standing posture, 12 and Theron et al…”

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confidence: 99%

Influence of wearing complete dentures on control of head position during walking in edentulous older adults

Shimizu,

Suzuki,

Isoyama

et al. 2023

J of Oral Rehabilitation

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BackgroundCoordination between the trunk and head is considered important for walking stability. Recent studies have reported that wearing complete dentures could improve trunk stability during walking; however, its effect on the head has not been clarified.ObjectiveThis study aimed to clarify the effect of complete dentures on head stability during walking in edentulous older adults.MethodsTwenty edentulous older adults (11 men and 9 women; mean age, 78.6 ± 5.8 years) who used complete dentures were included in the study. Acceleration and angle rate sensors were placed on the participants' brow, chin and waist, and they were asked to walk a 20‐m passage under two conditions: with and without dentures. The outcomes used to assess head stability were the variance values of acceleration and angle rate, the peak‐to‐peak values, harmonic ratio, root mean square, integrated values of the difference and dynamic time warping data obtained from the sensors. The variance values of the brow acceleration were compared using a paired t‐test, and other outcomes were compared using a Wilcoxon signed‐rank test. All significance levels were set at 5%.ResultsIn acceleration without dentures, the variance values of the chin and the peak‐to‐peak values of the brow and chin were significantly larger than with dentures. Angle rate without dentures, the variance values and the peak‐to‐peak values of the brow and chin were also significantly larger than with dentures.ConclusionWearing complete dentures while walking might improve head stability and contribute to walking stability in edentulous older adults.

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Understanding Posturo-Occlusal Interrelationships by Combining Digital Occlusal and Posture Diagnostic Technologies

Girouard

Ms²

2020

Advances in Medical Technologies and Clinical Practice

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The nature of the interrelationship between whole body posture and the quality of the dental occlusion has not yet to date been clearly documented within the dental or posture literature, as the findings of published studies within both fields have been scarce and inconclusive. The combined use of digital diagnostic occlusal and postural assessment technologies has not been widely employed in these research projects, which has mired both fields' ability to study, to understand, and to clearly ascertain how posture and dental occlusion affect each other physiologically. As such, the specific aims of this chapter are to outline how posture and dental occlusion interrelate through the stomatognathic system's afferent neural inputs into the central nervous system (CNS), which communicate important occlusal contact force distribution information, and equally as important, mandibular spatial positional information within the posture and balance regions of the brain. The concept that the dental occlusion is a capteur for posture (which in English means, a sensor of posture health), is further explored with the inclusion of three differing clinical posturo-occlusal cases, diagnosed and treated with the combined use of the T-Scan 9 computerized occlusal analysis technology, the MatScan/MobileMat foot pressure mapping technology, and the Footmat Research software version 7.10. These presented clinical cases illustrate that improved right-to-left occlusal contact force balance, and improved center of force location within the dental arches, improve a number of measurable sway parameters. Together, the implementation of the T-Scan and the MatScan exquisitely demonstrate to the clinician the significance of the physiologic interrelationship between body posture and the dental occlusion. The presented cases emphasize there exists a whole-body concept that depends upon a variety of differing systems, whereby changes in the dental occlusion produce a phenomenon of bio-functional neuro-reprogramming for the stomatognathic system and the whole body.

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The effect of denture installation at mandibular rest position on unsteady motion of the centre of pressure in postural sway

Cited by 3 publications

References 17 publications

Occlusal support and postural stability in children: An observational study

Occlusal support and postural stability in children: An observational study

Influence of wearing complete dentures on control of head position during walking in edentulous older adults

Understanding Posturo-Occlusal Interrelationships by Combining Digital Occlusal and Posture Diagnostic Technologies

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