About Praetorian Bio

Founded at the intersection of science and prevention, Praetorian Bio is redefining oral health through next-generation vaccines.

A Global Health Crisis Hiding in Plain Sight

Oral diseases are the most widespread health conditions on the planet, affecting over 3.5 billion people, nearly half the global population. Despite their scale, they remain dramatically under-prioritized in global public health strategies. The consequences go far beyond the mouth, with untreated gum disease linked to Alzheimer’s, diabetes, cardiovascular disease, and cancer. The economic toll exceeds $800 billion annually, more than the GDP of most countries.

Estimated cases of major oral diseases by World Bank income group, 1990 to 2019

Why Oral Health Matters

Oral diseases are the most widespread health conditions on the planet, affecting over 3.5 billion people, nearly half the global population. Among these, dental cavities are the #1 most common chronic disease in children, more prevalent than asthma, obesity, or diabetes. Despite their ubiquity, oral diseases remain dramatically under-prioritized in public health strategies.

The economic impact is staggering. Dental caries alone costs over $500 billion annually in restorative treatment, lost productivity, and the cascading effects of untreated decay. Periodontitis adds an additional $155 billion in the U.S. and €160 billion in Europe, with strong associations to chronic disease. Combined, these two diseases account for a global economic impact exceeding $800 billion, more than the GDP of most countries.

Beyond the mouth, the consequences are systemic. Untreated periodontal disease has been linked to Alzheimer’s disease, diabetes, cardiovascular disease, and cancer. These are not isolated conditions; they are gateways to broader health deterioration.

Total direct dental spending by World Bank income group (US$ billions)

Addressing oral health is not a cosmetic issue. It is a critical global health, equity, and economic priority, and Praetorian Bio is leading the charge.

Meet the team

Praetorian Bio was born from a simple conviction: that mucosal immunology could finally take on one of the world’s most overlooked public health crises, oral disease. Co-founded by immunologist Francisco Leon, co-developer of six approved drugs, the company has grown into a team that brings together deep, complementary expertise across immunology, vaccine development, translational science, and company building, all focused on turning that idea into real therapies.

Francisco Leon, MD, PhD

Francisco Leon, MD, PhD

Chairman of the Board

Armando Cuesta, MD, MBA

Armando Cuesta, MD, MBA

Co-Chief Executive Officer

Ivo Ploemen, PhD, MBA

Ivo Ploemen, PhD, MBA

Co-Chief Executive Officer

Dinja Oosterhoff, PhD

Dinja Oosterhoff, PhD

Chief Scientific Officer

Anthony Garramone

Anthony Garramone

Chief Operating Officer

Antonio González, MD, PhD

Antonio González, MD, PhD

Senior Clinical Advisor

Scientific Advisory Board

Jeannine Brady, PhD

Jeannine Brady, PhD

Martin Taubman, DDS, PhD

Martin Taubman, DDS, PhD

Daniel J. Smith, PhD

Daniel J. Smith, PhD

Esteban Plata, PhD

Esteban Plata, PhD