Oral diseases affect nearly 3.5 billion people worldwide, exceeding the prevalence of diabetes or asthma, yet remain largely preventable. Following an advisory board convened by Kenvue, Professor David Williams outlines why current prevention models are failing and what systemic change is needed to address this global public health challenge.

Why current prevention models are insufficient

Most prevention strategies rely on individual behaviour change, such as diet modification and improved oral hygiene, delivered primarily through dental surgeries. This approach has significant limitations. It depends heavily on access to dental care and does not address social determinants of health, which directly shape oral health outcomes. A behavioural approach alone risks widening inequalities, as it places responsibility on individuals while ignoring the conditions in which they live. The persistence of oral disease despite being largely preventable reflects a failure to implement population-level strategies and a failure to understand why socioeconomic position correlates so strongly with disease burden.

Integration with broader health policy and public systems

Oral diseases share common risk factors and social determinants with other major non-communicable diseases, including heart disease, diabetes, and cancer. Yet oral health remains siloed within dental systems rather than integrated into wider health policy. This misalignment means that reducing sugar consumption, alcohol use, and tobacco exposure, while beneficial for overall health, is not framed or funded as an oral health intervention. Additionally, commercial determinants of health, such as corporate strategies promoting harmful products, are not adequately challenged. Water fluoridation, fluoridated toothpaste, and sugar levies represent the most impactful upstream interventions at population level. Evidence shows sugar consumption declines after sugar levies are introduced. Public health systems must be funded and restructured to prioritise prevention over treatment. Oral health literacy must be raised not only among the public but across all caring professions, including doctors and pharmacists. A life course approach, embedding oral health at every stage from early childhood through older age, is essential.

Role of interdisciplinary partnerships and advocacy

Addressing oral health inequalities at scale requires alliances across dentistry and the wider health community, including organisations such as the World Health Organization and the World Dental Federation. Consensus statements distil evidence and expert judgment into clear messages for policymakers. Without alignment among experts around strong evidence, progress is limited. With it, oral health is more likely to receive political attention.