Baby bottle tooth decay (BBTD) is a preventable dental disease that affects more than 50% of American Indian/Alaska Native (AI/AN) children. A community-oriented program to prevent BBTD was implemented in 12 AI/AN communities in 1986. In 1989, the overall prevalence of BBTD for the 12 sites combined decreased from 57% to 43% which represented a 25% reduction (P