I went to a dentist recently that was supposed to be a cheap one (someone said they base the bill on your income.) I got the bill a week later and one of the charges on it it said "Oral Hygiene Instr." So, I called them just to make sure it was what I thought it was. Sure enough, they charged me for how to brush my teeth!!! And they charged $25 too.....For people who have insurance, stuff like that should be considered insurance fraud (although I don't have dental insurance).