LAS VEGAS (KSNV) — Nevada dentists are backing a bill that would raise the state's requirement for spending by insurance companies. State Sen. Heidi Seevers Gansert filed an insurance reform bill to raise the requirement for spending on patient care, the Nevada Dental Association says. Under the bill, at least 80% of the money that dental insurance companies collect from patients would have to be spent on dental care. The Dental Association says this change would match Nevada's existing requirement for spending on medical care.