Heida, M.S. (2021) De relatie tussen kauwkracht en cognitie Wat is het verschil in gemiddelde maximale kauwkracht bij mensen met en zonder dementie, en in hoeverre is dit verschil afhankelijk van het type gebit? thesis, Dentistry.
Full text available on request.Abstract
Background: With the elderly population increasing rapidly, the prevalence of dementia is also expected to increase. Dementia is a neurodegenerative process, which causes progressive decline of cognitive functions. No cure or preventive measures are known yet. Studies identified a positive link between chewing ability and dementia. Chewing is a physical activity, which causes an increase in cerebral blood flow. The increased blood flow could enhance brain function. This study investigated the difference in maximum bite force between subjects with and without dementia and evaluated whether a difference is caused by the type of denture. The aim of this study was identifying a link between cognition and chewing ability. This information could contribute to prevention of dementia. Methods: This cross-sectional case control study included two groups of elderly (aged 75-95 years): 30 elderly with dementia and a control group with 29 healthy elderly subjects. Both groups were subdivided into three subgroups: subjects with their natural teeth, with a conventional denture or with an implant-supported denture. Between October 2020 and February 2021 maximum bite forces were recorded using a thin pressure sensor. Furthermore, subjective oral health (Geriatric Oral Health Assessment Index) and frailty (Groningen Frailty Indicator and grip strength) were evaluated. In the control group cognitive function was evaluated using the Mini-Mental Stage Examination. To examine differences in bite force between (sub)groups, a factorial ANOVA was performed. Linear regression analyses were performed to examine influences of several variables on maximum bite force. Results: The value of maximum bite force was significantly lower for elderly with dementia compared to healthy elderly (p < ,001). The type of denture had significant influence on maximum bite force (p < ,001). Subjects with natural teeth showed the highest values of maximum bite force, subjects with a conventional prothesis showed the lowest values. The difference between the dementia- and control group in maximum bite force was not dependent on type of denture (p > ,05). According to multiple linear regression analysis, the value of maximum bite force could best be predicted by cognition (p < ,001), the type of denture (p <,05) and the subjective oral health score (p < ,001). These variables accounted for 59% of the variation in maximum bite force. Conclusion: This study identified a significant difference in maximum bite force between subjects with and without dementia. Supported by findings in literature, this result could suggest that maintenance of chewing ability may have positive influence on cognition. Knowledge of this possible risk indicator could influence decision-making in dental treatment. Focus on preservation of sufficient chewing ability could be important, especially with elderly patients. More studies with a longitudinal design are necessary to determine the causal relationship between chewing ability and cognition.
| Item Type: | Thesis (UNSPECIFIED) |
|---|---|
| Supervisor name: | Hoeksema, dr. A.R. |
| Faculty: | Medical Sciences |
| Date Deposited: | 22 May 2023 11:22 |
| Last Modified: | 22 May 2023 11:22 |
| URI: | https://umcg.studenttheses.ub.rug.nl/id/eprint/3527 |
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