New Evidence Links Declining Oral Function to Lifestyle-Related Diseases

A recent study led by Mitsuyoshi Yoshida, DDS, PhD, at Fujita Health University in Toyoake, Aichi, Japan, has uncovered compelling evidence linking reduced oral function to elevated risk markers for common lifestyle-related diseases, including diabetes, dyslipidemia, and renal impairment. The study offers important clinical insights for oral health professionals working with aging populations.

Researchers assessed 118 individuals aged 50 and older using seven standardized oral function tests, such as tongue pressure, oral diadochokinesis (OD), number of functional teeth, and masticatory ability. They then correlated these findings with blood test results for fasting glucose, HbA1c, lipid panels, and kidney function.

Notably, participants with out-of-range glucose markers had significantly fewer remaining teeth and lower OD values. Elevated cholesterol was associated with higher tongue coating index and lower speech articulation speed, while reduced estimated glomerular filtration rate was also linked with poorer oral function indicators. These associations point to a bidirectional relationship between oral and systemic health.

“These results suggest that oral function assessment can serve as an early indicator of systemic health issues,” explains Yoshida. “They also support the integration of dental evaluations into routine health check-ups for proactive disease prevention.”

This study reinforces the importance of comprehensive oral examinations, not only for local oral conditions but as a potential screening tool for systemic disease risk. Incorporating oral function testing into routine dental visits could position dentists as frontline contributors to holistic patient care. Click here to read more.