Aging can take a toll on teeth, and for many seniors paying for dental services is a serious concern because they can't rely on their Medicare coverage.
Low-income seniors, in particular, are struggling. More than a third with incomes below 200 percent of the federal poverty level (about $23,000 annually) had untreated tooth decay between 2011 and 2014, according to an analysis of federal data by the American Dental Association.
