Effect of Molar Occlusal Balance on Cognitive Function in the Elderly

Area of Science:

• Gerontology
• Neuroscience
• Dental Science

Background:

• Dementia prevalence is rising among the elderly in Korea, posing a significant social challenge.
• Investigating factors influencing cognitive decline in older adults is crucial for public health.

Purpose of the Study:

• To examine the relationship between molar occlusal balance and cognitive function in Korean adults aged 65 and above.
• To understand how dental occlusion impacts cognitive abilities in the elderly population.

Main Methods:

• 308 participants aged 65+ were recruited from a senior center.
• Cognitive function was assessed using the Korean Mini-Mental State Examination (MMSE-DS).
• Masticatory ability and relative molar occlusal balance were measured using T-scan III, alongside other dental assessments.

Main Results:

• A significant association was found between cognitive function and molar masticatory ability (P < .05).
• Participants with relative molar occlusal balance demonstrated higher MMSE-DS scores compared to those with anterior occlusal balance.
• Greater relative molar occlusion correlated with higher cognitive function, independent of several confounding factors.

Conclusions:

• Enhanced relative molar occlusal balance is associated with better cognitive function in the elderly.
• Mastication involving posterior teeth may play a key role in stimulating cognitive function.
• Oral health interventions focused on maintaining molar teeth are vital for elderly cognitive health.