Fluoride could soon be added to most of the country’s drinking water, with Prime Minister Jacinda Adern promising to pass a Bill that’s been on hold for nearly four years, Newshub reports. The National Party supports the proposed change, which came alongside another dental promise on Wednesday: giving preschoolers free toothbrushes. David Wallbridge of Family Teeth Matters said the country is in the middle of a “decay epidemic.” The Bill would give water fluoridation powers to District Health Boards, and would likely extend water fluoridation from 50 percent of the country to at least 85 percent. It could more than $600 million over 20 years.