SAN RAFAEL, Calif. — When Bobby Moske went to a community clinic a few years ago with a toothache, he couldn’t find a dentist in Marin County willing to take Medicaid to do a root canal. Marin Community Clinics referred the 75-year-old to a dentist about 20 miles away in San Francisco, but his tooth decayed while he waited months for authorization to cover the procedure. In the end, his tooth was pulled. It was the sixth time in a decade Moske had lost a tooth for lack of dental care, he said. The behavioral health peer specialist wears a denture that must be removed at mealtime, making eating…