Occlusal force predicted cognitive decline among 70- and 80-year-old Japanese: A 3-year prospective cohort study

Hatta, Kodai; Gondo, Yasuyuki; Kamide, Kei; Masui, Yukie; Inagaki, Hiroki; Nakagawa, Toshio; Matsuda, Ken; Inomata, Chisato; Takeshita, Hitoshi; Mihara, Yusuke; Fukutake, Motoyoshi; Kitamura, Masahiro; Murakami, Shinya; Kabayama, Mai; Ishizaki, Tatsuro; Arai, Yasumichi; Sugimoto, Ken; Rakugi, Hiromi; Maeda, Yoshinobu; Ikebe, Kazunori

doi:10.1016/j.jpor.2019.07.002

Cited by 17 publications

(46 citation statements)

References 28 publications

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“…Many previous studies have focused on occlusal force and grip strength [4][5][6]. In this study we found a relationship between occlusal force and grip strength, consistent with the results reported in previous studies.…”

Section: Discussionsupporting

confidence: 93%

“…A previous study found that occlusal force was associated with factors related to health status in the elderly, such as physical [3][4][5], cognitive functions [6], nutritional status [7], and all-cause mortality [8,9]. In addition, many studies have shown that endothelial dysfunction was associated with cerebrovascular disease and myocardial infarction [12,13] that may have residual sequelae even after recovery, and can be considered to be risk factors for shorted healthy life expectancy.…”

Section: Discussionmentioning

confidence: 99%

“…"Eating" is a crucial part of ADL; it plays an important role in determining the QOL, especially in the elderly, and oral function [1,2]. Previous studies have shown that occlusal force is associated with physical function [3][4][5], cognitive function [6], nutritional status [7], and all-cause mortality in the elderly [8,9]. Endothelial function is also related to lifestyle habits [10] such as diets and exercise [11], and is assessed by ow-mediated dilation (FMD).…”

Section: Introductionmentioning

confidence: 99%

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Relationship between occlusal force and endothelial function in community-dwelling elderly

Kato

Matsuda

Takahata

et al. 2021

Preprint

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Background: Prolonged healthy life expectancy, which is duration without the requirement of any kind of help for activities of daily living (ADL), is essential to ensure a long life with a good quality of living in the community. Further, local residents should understand their health conditions and live consciously to prolong healthy life expectancy. The development of a simple general health indicator is necessary. Both occlusal force and flow-medicated dilation (FMD) which reflects endothelial function are useful tools for understanding the general condition of the elderly. However, few studies have investigated the relationship between occlusal force and endothelial function. In the present study we examined this relationship, occlusal force measurement can be a good indicator of the general condition of the elderly. Methods: In 38 community-dwelling women(aged 76.7 ± 5.7 years), we measured occlusal force,　grip strength, endothelial function evaluated by FMD, advanced glycation end products (AGEs). In this study we investigated the relationship between occlusal force, measurement items, and factors independently related to endothelial function. Results: There were significant correlation between occlusal force and grip strength (r = 0.54, p < 0.01). Degree of FMD significantly associated with occlusal force (r = 0.60, p < 0.01) and grip strength (r = 0.35, p < 0.05) or amount of increased AGEs (r = -0.37, p < 0.05). Multiple regression analysis revealed occlusal force as factors with significant association with degree of FMD (p < 0.01). Conclusion: There was a significant relationship between occlusal force and FMD. Occlusal force can be an important indicator of endothelial function in community-dwelling elderly. This study may help understanding general health of elderly in community.

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Section: Discussionsupporting

confidence: 93%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Relationship between occlusal force and endothelial function in community-dwelling elderly

Kato

Matsuda

Takahata

et al. 2021

Preprint

View full text Add to dashboard Cite

show abstract

“…Eating is a crucial part of ADLs; it plays an important role in determining oral function and QOL, especially in the elderly (Ohtani et al, 2002 ; Rouxel et al, 2017 ). Previous studies showed that occlusal force is associated with physical function, (Umeki et al, 2018 ; Yamaguchi et al, 2018 , 2019 ) cognitive function, (Hatta et al, 2019 ) nutritional status, (Okamoto et al, 2019 ), and all‐cause mortality in the elderly (Iinuma et al, 2016 ; Ohi et al, 2019 ).…”

Section: Introductionmentioning

confidence: 99%

“…cognitive function, (Hatta et al, 2019) nutritional status, (Okamoto et al, 2019), and all-cause mortality in the elderly (Iinuma et al, 2016;Ohi et al, 2019).…”

mentioning

confidence: 99%

Relationship between occlusal force and endothelial function in community‐dwelling elderly women: A pilot study

Kato

Matsuda

Takahata

et al. 2022

Clinical & Exp Dental Res

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Objective In this study, age, endothelial function as flow‐mediated dilation (FMD), occlusal force, grip strength, and advanced glycation end products (AGEs) were obtained. AGEs were measured as indicators of aging, while grip strength was measured as an indicator of muscle strength. This study aimed to explain the relationship between occlusal force and endothelial function and determine whether occlusal force can be a new indicator in community preventative care projects. Materials and Methods In 38 community‐dwelling women (age, 76.7 ± 5.7 years), the occlusal force and grip strength were measured, the endothelial function was evaluated by FMD, and AGEs were obtained. The relationship between occlusal force, measurement items, and factors were investigated independently related to endothelial function. Results There were significant correlations between occlusal force and grip strength (r = .54, p < .01). The degree of FMD was significantly associated with occlusal force (r = .60, p < .01) and grip strength (r = .35, p < .05) or increase in AGEs (r = −.37, p < .05). Multiple regression analysis revealed that occlusal force was significantly associated with the degree of FMD (p < .01). Conclusion Occlusal force can be an important indicator of endothelial function in the community‐dwelling elderly. This study may help understand the general health of the elderly in communities.

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Assessment of subjective and objective masticatory function among elderly individuals with mild cognitive impairment

et al. 2022

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Background Masticatory function is known to be related to cognitive ability; therefore, factors for improving masticatory function should be identified. Aims This study aimed to identify factors influencing masticatory function associated with mild cognitive impairment (MCI) in elderly individuals. Methods A total of 123 elderly participants [mean age: 76.5 ± 6.5 years; 82 females (66.7%), 41 males (33.3%)] were included. Cognitive function was evaluated by the Korean version of the Mini-Mental State Examination (KMMSE). Questionnaires for subjective evaluation were administered, and dynamic objective masticatory function evaluations, including chewing tests and bite force measurements, were performed. Intergroup differences were evaluated by the Wilcoxon rank-sum and chi-square test, and correlations between cognitive ability and masticatory function were evaluated by multilinear logistic regression. Results The number of teeth, number of posterior teeth, bite force, masticatory ability index (MAI) and posterior support status showed significant differences between the normal (KMMSE > 23) and MCI (KMMSE ≤ 23) groups. However, only the MAI, representing dynamic masticatory performance, was significantly associated with MCI regardless of age, sex and removable prostheses. The number of teeth and posterior teeth, bite force, subjective masticatory ability and posterior occlusal support showed no significant association with MCI. Discussion These results suggested the importance of chewing function for preventing the progression of cognitive impairment. Conclusions Considering that only the MAI was significantly associated with MCI, it is more important to improve chewing efficiency by harmonizing therapeutic prosthetics with the surrounding masticatory system than simply increasing the number of teeth to prevent or delay cognitive impairment in elderly individuals.

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Occlusal force predicted cognitive decline among 70- and 80-year-old Japanese: A 3-year prospective cohort study

Cited by 17 publications

References 28 publications

Relationship between occlusal force and endothelial function in community-dwelling elderly

Relationship between occlusal force and endothelial function in community-dwelling elderly

Relationship between occlusal force and endothelial function in community‐dwelling elderly women: A pilot study

Assessment of subjective and objective masticatory function among elderly individuals with mild cognitive impairment

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