We examined progress in US children's oral health and dental public health infrastructure since the Healthy People 2010 Oral Health Objectives were issued. We summarize trends in the prevalence of dental caries and dental sealants on the basis of national and state-specific data. Trends in state oral health program activities, funding, and staffing were derived from annual surveys. The prevalence of dental caries in primary teeth of children aged 2-4 years increased from 18% in 1988-1994 to 24% in 1999-2004. Racial disparities persisted in that age group, with caries significantly more prevalent among non-Hispanic black and Mexican American children than among non-Hispanic white children. Caries prevalence in primary teeth of non-Hispanic white children aged 6-8 years remained unchanged, but increased among non-Hispanic black and Mexican American children. State-specific prevalence of caries among third-graders ranged from 40.6% to 72.2%. Caries in permanent teeth declined among children and adolescents, while the prevalence of dental sealants increased significantly. State oral health programs' funding and staffing remained modest, although the proportion of states with sealant programs increased 75% in 2000 to 85% in 2007 and the proportion with fluoride varnish programs increased from 13% to 53%. Progress toward improving the oral health of America during the past decade has been mixed. Greater attention to the oral health of young children is clearly needed, and child health professionals can be valuable partners in the effort. With continued high prevalence of a largely preventable disease, ongoing problems with access to basic oral health services, and increased national attention to health care reform, there is a clear need and opportunity for governments to make serious and sustained investments in dental public health.