A toothbrush having a handle and at one end having a bristle-bearing head which is in the form of one or more segments which are flexibly and/or resiliently linked to each other. Optionally, the head may also be flexibly and/or resiliently linked to the handle. The grooves between the linked segments...http://www.google.se/patents/USRE38521?utm_source=gb-gplus-sharePatent USRE38521 - Toothbrush with resiliently flexible head
