Association between occlusal force and physical functions in preschool children: a comparison of males and females

This randomized controlled study is aimed at investigating the effects of long-term use of insoles with a toe-grip bar on the balance, walking, and running of preschool children. Fifty-two preschool children were randomly assigned to an intervention group or control group. Children included in the intervention group wore shoes with insoles that had a toe-grip bar, and those in the control group wore shoes with regular insoles without a toe-grip bar for 4 weeks while they were at school. The center of gravity sway (total trajectory length and envelope area), walking parameters (walking speed, cadence, stride length, step length, stance time, and swing time), and time to run 25 m were measured before and after the intervention. The 25 m running time of the intervention group was significantly improved after the intervention (F=5.66; p<0.05). This study suggests that insoles with a toe-grip bar may contribute to improvements in the running of preschool children.

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“…The 25 m running time was measured using a digital stopwatch [22,23]. The run began from a standing start.…”

Section: 1mentioning

confidence: 99%

Effects of Long-Term Use of Insoles with a Toe-Grip Bar on the Balance, Walking, and Running of Preschool Children: A Randomized Controlled Trial

Nakano

Murata

Abiko

et al. 2020

BioMed Research International

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“…There are several reports on the relationship between occlusion and physical function, the findings of which can be summarized as follows: equalization of occlusal contact by wearing a mouthguard reduces static center-of-gravity sway; strong occlusal force is an important factor in muscle strengthening; and occlusal force and the stability of occlusal contact are related to agility during competition [3,[11][12][13]. These findings suggest that occlusion affects body balance, muscle strength, and agility, and may also affect athletic performance.…”

Section: Discussionmentioning

confidence: 99%

Influence of Occlusion on Flight Time in Trampoline Competition

Takahashi¹,

Bando²,

T³

et al. 2023

Int J Dent Oral Health

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Purpose: The aim of this study was to clarify the effect of occlusion on flight time in trampoline competition. Materials and methods: Participants were 10 male trampoline gymnasts (18.9 ± 0.8 years). Dental Prescale was used to measure the occlusal contact state, and the lateral difference in the occlusal contact area was calculated. An all-in-one measurement system (HDTS EU-7100) was used to measure the flight time during consisted of 10 consecutive straight jumps. The correlation between the lateral difference in occlusal contact area and flight time was analyzed using Pearson’s product-moment correlation coefficient. A custom mouthguard was fabricated using a 2.0-mm-thick thermoplastic sheet and was adjusted so that all teeth were in even contact with light clenching. Differences in flight times with and without a mouthguard were compared using a paired t-test. Spearman’s rank correlation coefficient was used to analyze the relationship between the lateral difference in occlusal contact area and the rate of flight-time prolongation due to wearing a mouthguard. Results: A negative correlation was observed between the lateral difference in occlusal contact area and flight time (P<0.05, R=−0.697). As a result of comparing the flight time with and without a mouthguard, flight time was significantly longer with a mouthguard (P<0.05). A significant positive correlation was observed between the lateral difference in occlusal contact area and the extension rate of flight time due to wearing a mouthguard (P<0.05, R=0.657). Conclusion: This study revealed a relationship between occlusion and flight time during straight jumps in the trampoline competition and found that the smaller the left-right difference in the occlusal contact area, the longer the flight time. In addition, it was clarified that achieving uniform occlusal contact by wearing a mouthguard contributed to the extension of flight time, and this effect was more pronounced in athletes with uneven occlusal contact.

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“…Both gauges are portable hydraulic compression force gauges. The weight of the OFM is 63.52 g (grams); that of the PRO, 93.89 g. The OFM has been used in many studies [24,[41][42][43]. It has a biting element made of a vinyl material enclosed in a polyethylene tube surrounded by a plastic cover.…”

Section: Study Measuring Devices and Their Applicationmentioning

confidence: 99%

“…In contrast to daily dental practice, many clinical studies assess both occlusal force (e.g., [22][23][24]) and chewing efficiency (e.g., [25][26][27]) within a wide variety of populations. A variety of measurement methods and instruments are used for this purpose.…”

Section: Introductionmentioning

confidence: 99%

Validation of a New Measuring Instrument for the Assessment of Bite Force

Nitschke,

Moede,

Hopfenmüller

et al. 2023

Diagnostics

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Background: this study aims to validate two occlusal-force-measuring devices by comparing them to a universal testing machine and assessing their reliability across various dental and prosthetic groups. The research comprised two parts: part 1 assessed the measurement accuracy of the Occlusal Force Meter GM 10® (OFM) (Morita, Nagano Keiki, Higashimagome, Ohta-ku, Tokyo, Japan) and a prototype (PRO) by comparing them to a calibrated universal testing machine (ZWICK). Part 2 involved analyzing the devices’ reliability based on clinical bite force measurements from study participants. Results: both devices become more accurate and reliable compared to the ZWICK over time of usage. Additionally, higher deviation from the ZWICK can be observed for higher values of forces applied and vice versa for both devices. The PRO’s intraoral alignment influences its mean values compared to the OFM in different dental and prosthetic groups. Conclusion: both devices had limitations and required quadratic function calibration, making them suitable only for progression measurements. The study concludes that both the OFM and PRO devices can measure occlusal forces with improved accuracy over time. Intraoral alignment should be considered. Their easy-to-use clinical application would allow a more widespread use of masticatory function diagnosis, which could indicate the need for treatment and improve treatment planning.

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Association between occlusal force and physical functions in preschool children: a comparison of males and females

Cited by 4 publications

References 14 publications

Effects of Long-Term Use of Insoles with a Toe-Grip Bar on the Balance, Walking, and Running of Preschool Children: A Randomized Controlled Trial

Effects of Long-Term Use of Insoles with a Toe-Grip Bar on the Balance, Walking, and Running of Preschool Children: A Randomized Controlled Trial

Influence of Occlusion on Flight Time in Trampoline Competition

Validation of a New Measuring Instrument for the Assessment of Bite Force

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