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Functional status of masticatory system, executive function and episodic memory in older persons
E Scherder1, W Posthuma, T Bakker
1Institute of Human Movement Sciences, Rijksuniversiteit Groningen, Groningen, The Netherlands. e.j.a.scherder@rug.nl
Journal of Oral Rehabilitation
|April 15, 2008
Summary
Chewing problems in elderly individuals with dentures are linked to poorer executive functions and episodic memory. Maintaining good masticatory performance is crucial for cognitive health in this population.
Area of Science:
- Gerontology
- Neuroscience
- Dental Medicine
Background:
- Previous studies indicate mastication benefits cognitive function in younger adults.
- The impact of masticatory system's functional status on cognition in the elderly remains less explored.
Purpose of the Study:
- To investigate the association between masticatory system function, episodic memory, and executive functions in independently living elderly individuals.
- To compare these associations between elderly individuals with natural teeth and those with full dentures.
Main Methods:
- Participants were divided into two groups: those with natural teeth (n=19) and those with full dentures (n=19).
- Masticatory system status was evaluated through mandibular excursions, bite force, occluding pairs, and self-reported complaints.
- Cognitive functions, including executive functions and episodic memory, were assessed using neuropsychological tests.
Main Results:
- In the full denture group, masticatory system complaints predicted 22% of executive function variance.
- Masticatory performance (mandibular excursions and bite force) predicted 19.4% of episodic memory variance in the full denture group.
- No significant associations were found in the group with natural teeth.
Conclusions:
- The relationship between mastication, episodic memory, and executive function is evident in elderly individuals with full dentures, particularly when masticatory system function declines.
- Masticatory performance and complaints are significant predictors of cognitive function in edentulous elderly individuals using dentures.
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