This legislation, titled the "Medicaid Dental Benefit Act of 2026," aims to significantly expand and improve dental and oral health coverage for adults under Medicaid. Effective January 1, 2027, it mandates that state Medicaid programs provide comprehensive dental and oral health services for adults, including those considered medically needy. These services encompass dentures, implants, and care necessary to prevent disease, promote health, restore function, reduce pain, and treat emergency conditions, as long as they are furnished by legally authorized providers. To incentivize states to implement this new mandate, the bill provides a substantial financial incentive. For a 12-quarter period starting January 1, 2027, the Federal Medical Assistance Percentage (FMAP) will be 100 percent for expenditures related to these newly mandated adult dental and oral health services in the 50 states and the District of Columbia. Territories will also receive 100% FMAP for a similar period once they begin covering these services, with these funds excluded from existing territorial caps. Beyond coverage, the bill establishes a robust system for monitoring and improving the quality and equity of adult oral health care. The Secretary of Health and Human Services is directed to develop and publish a core set of adult oral health quality and equity measures within one year, consulting with various stakeholders. These measures will cover aspects like service utilization, emergency department visits for dental issues, and screening for conditions like caries and periodontitis, with a focus on disaggregated data to identify disparities. States will be required to submit annual reports detailing their specific oral health quality measures, care quality and equity data (stratified by demographics), available dental benefits, and plans to reduce health disparities. The Secretary will then collect, analyze, and publicly disseminate this information. Furthermore, the Medicaid and CHIP Payment and Access Commission (MACPAC) is tasked with submitting a comprehensive report to Congress on adult oral health issues, including access barriers and the impact of the bill's provisions. Finally, the legislation mandates the development of an oral health outreach and education program within one year. This program will provide culturally competent and linguistically appropriate information about Medicaid adult dental coverage, help connect underserved populations to care, educate professionals on delivering culturally sensitive oral health care, and promote good oral health practices among diverse Medicaid beneficiaries.