This brief presents highlights from rigorous, independent evaluations of the Healthy Kids programs in three California counties: Los Angeles, San Mateo, and Santa Clara. Launched by Childrens Health Initiatives (CHIs) in these counties between 2001 and 2003, the three Healthy Kids programs provide children with comprehensive health insurance coverage, including a broad range of medical, dental, and vision care; prescription drugs; and mental health services. Children are eligible for Healthy Kids if they are ineligible for Californias two major state insurance programs, Medi-Cal and Healthy Families, and live in families with incomes up to 300 percent of the federal poverty level (FPL) in Los Angeles and Santa Clara counties, and 400 percent of the FPL in San Mateo County. Most of the children enrolled in Healthy Kids have family incomes at or below the poverty level. This brief describes some of the many positive impacts that Healthy Kids programs have had on childrens access and use of dental services. For more information on these and other findings on the three programs, see http://www.urban.org and http://www.mathematica-mpr.com/health/chi.asp.