Is Fluoride Safe? The Science Behind Dental Health

Fluoride, oral health, dental infections, and the science behind cavity prevention take center stage in this episode of The Director’s Desk.

NIH Director Dr. Jay Bhattacharya sits down with Dr. Jennifer Webster-Cyriaque, Acting Director of the National Institute of Dental and Craniofacial Research (NIDCR), to discuss why dental health is essential to overall health — and what the latest NIH-supported research reveals about preventing tooth decay and serious oral infections.

Tooth decay remains one of the most common chronic diseases worldwide. When untreated, cavities and gum disease can progress beyond the mouth, leading to bloodstream infections and severe systemic complications. Dr. Webster-Cyriaque explains the science behind oral bacteria, infection risk, and why prevention, early treatment, and community water fluoridation continue to play a critical role in public health.

In this conversation, they explore:

• The health consequences of untreated cavities and oral infections
• The connection between oral health and systemic disease
• The evidence behind fluoride and cavity prevention
• NIH-supported dental and craniofacial research
• Health equity and reducing disparities in oral health care
• Dr. Webster-Cyriaque’s scientific career and leadership at NIDCR

This episode highlights a central message of biomedical research and public health: oral health is integral to overall health.

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