Communities are facing a dental dilemma, said Jenny Kattlove of The Children’s Partnership, a nationwide nonprofit research and advocacy organization based in Santa Monica. Low reimbursement rates are one of the main reasons that dentists don’t accept Medi-Cal, Kattlove said. Yet, by the end of 2013, more than half of all children in California will be enrolled in Medi-Cal, she said. “We must make sure we have the providers and they must be paid at a market rate.”