Masticatory Performance Test Using a Gummy Jelly for Older People with Low Masticatory Ability

Area of Science:

• Gerontology
• Dental Science
• Biomedical Engineering

Background:

• Masticatory ability is crucial for overall health in aging populations.
• Decreased chewing function negatively impacts older adults' general health.
• Conventional masticatory performance tests may not adequately assess individuals with low ability.

Purpose of the Study:

• To evaluate the compatibility and adaptation of a new masticatory performance test.
• The new test uses smaller gummy jelly portions for individuals with low masticatory performance.
• To determine if the new test provides a more detailed assessment for older adults.

Main Methods:

• A new test using half-size gummy jelly and an 8-grade visual score was administered.
• 137 removable denture wearers (mean age 75.8 years) with low masticatory performance participated.
• Correlation between new (VS-H) and conventional (VS) test scores was analyzed.

Main Results:

• A strong positive correlation (r_s = 0.70) was found between the new and conventional test scores.
• The new test (VS-H) showed wide score distribution for low conventional scores (VS 0-1).
• Significant differences in VS-H were observed for VS groups 0-2, but not for VS 2-4.

Conclusions:

• The new masticatory performance test with half-size gummy jelly is suitable for detailed evaluation.
• This test is particularly effective for older adults with low masticatory ability (VS ≤ 2).
• The adapted test enhances the assessment of chewing function in vulnerable elderly populations.