title: The "electric" toothbrush of one hundred years ago.
authors.forename: M E
authors.initials: ME
authors.lastname: Ring
mesh_terms: D003742:Dental Devices, Home Care / Q000266:history*; D004560:Electricity / Q000266:history; D049672:History, 19th Century; D049673:History, 20th Century; D006801:Humans; D011781:Quackery / Q000266:history*; D014481:United States