A tooth prothesis located in a mandible tooth socket having a root supporting a crown. The root has a cone-shaped head located in a recess in the bottom of the crown and a stem extended into the socket. An elastic body of ethylene vinyl acetate (EVA) copolymer surrounds and is bonded to the stem. The...http://www.google.fr/patents/US4252525?utm_source=gb-gplus-shareBrevet US4252525 - Dental implant
