A toothbrush and plaque scraper is disclosed for an oral cavity. A rigid handle, adapted to be grasped by a user, has a rigid base portion at a first end of a handle, extending away from the handle and having a top surface, at least one side surface and a bottom surface wherein the top, bottom and at...http://www.google.es/patents/US4610043?utm_source=gb-gplus-sharePatente US4610043 - Oral hygiene brush
