Oral Health Care in the United States.

Abstract

An updated understanding of the U.S. oral health care system is essential for addressing the burden of oral disease, high dental expenditures, and persistent inequities in access. This narrative review synthesizes current evidence on the prevalence of major oral diseases, dental care delivery, financing, dental workforce, and public health initiatives, and highlights the challenges and future opportunities in the U.S. A comprehensive search of PubMed, Google Scholar, and reports from U.S. federal agencies and professional organizations was conducted between September 2025 and March 2026. Following the latest National Health and Nutrition Examination Survey, untreated caries remains widespread, affecting 11% of children (ages 2-5), 10% of adolescents (ages 12-19), 21% of adults (ages 35-49), and 12% of older adults (ages 65-74). Periodontal diseases are common, with 42% of adults aged 30 years or older having periodontitis. Oral cancer incidence stands at 11.5 per 100,000 and increases sharply with advancing age. Edentulism among older adults (ages 65-74) was approximately 11%. The U.S. dental workforce includes over 200,000 dentists, yet shortages affect rural and low-income areas, with 62 million Americans living in Dental Health Professional Shortage Areas. Dental care is primarily delivered through private practices, supplemented by community health centers. Financing relies mostly on private insurance and out-of-pocket payments, while the coverage of public programs like Medicaid varies across states, and Medicare generally excludes routine dental care for older adults. Water fluoridation remains widespread, yet ongoing debates highlight persistent challenges. School-based dental sealants and topical fluoride programs are widely recognized as cost-effective and scalable, offering substantial benefits at the population level. Nevertheless, community-based preventive measures are often hindered by resource constraints, inequitable access, and in some cases political conflicts. In summary, oral diseases remain prevalent in the U.S. Limited public coverage, workforce shortages in rural or underserved areas, and uneven access to dental care highlight the need for systemic reforms to improve oral health equity. These findings point to the importance of strengthening dental public health research and coordinated policy action to reduce structural barriers and expand access to dental care.