In April, Trudy Schuett will have a procedure to save a tooth, which she estimates a dentist would charge $3,000 to $5,000 to do. But Schuett, who lacks dental insurance, will pay about $1,000, because the procedure will be performed by dental students at Midwestern University Clinics in Glendale, Arizona. Her cleanings at the school are affordable too. Regular clinic visits have saved “buckets of money,” she said. She is one of those resourceful retirees who always finds a way. But two out of three people over 65 do not have dental insurance, according to the Henry J. Kaiser Foundation, often because they lose the coverage when they leave their employer. Medicare does not pay for routine dental expenses, thoug…