Are Self-Reported Masticatory Ability and Regular Dental Care Related to Mortality?

Area of Science:

• Gerontology
• Public Health
• Dental Medicine

Background:

• Oral health is increasingly recognized as a critical component of overall health in aging populations.
• Masticatory ability and regular dental care are key indicators of oral health status.
• The long-term care insurance (LTCI) system aims to support individuals requiring assistance with daily living.

Purpose of the Study:

• To investigate the association between self-reported masticatory ability, regular dental care, and mortality.
• To examine the link between self-reported masticatory ability, regular dental care, and the need for new long-term care insurance (LTCI) service certifications.

Main Methods:

• A 5-year prospective cohort study involving 4,824 older adults (mean age 75.9 years).
• Data collected via self-administered questionnaires assessing chewing ability and dental care practices (tooth brushing, dental visits).
• Multivariate analyses used to determine the relationship between oral health indicators and health outcomes.

Main Results:

• A poor score in masticatory ability and regular dental care was significantly associated with adverse health outcomes.
• Increased risk of mortality was observed in individuals with poorer oral health indicators.
• Higher incidence of new long-term care insurance (LTCI) certification requirements was linked to diminished masticatory function and inadequate dental care.

Conclusions:

• Both self-care (brushing) and professional dental care are vital for maintaining oral health in older adults.
• Preserving masticatory ability is essential for healthy aging and reducing healthcare burdens.
• Public health initiatives promoting preventive oral care from middle age are recommended to improve long-term health outcomes.