Means and method are provided for implanting an artificial tooth in the alveolus in the jaw bone which is left when the tooth is extracted. The method comprises wrapping a thin, sheet metal base with barbed projections around the depending root portion of an artificial tooth, and pressing the root portion...http://www.google.es/patents/US4773858?utm_source=gb-gplus-sharePatente US4773858 - Tooth implant