A dental implant includes a porous ceramic cup or ring filled with silicone rubber which supports an artificial tooth or other prosthetic device such as a denture. The jawbone grows into the porous ceramic to hold the implant firmly in place. The silicone rubber cushions the jawbone from shock caused...http://www.google.fr/patents/US3934347?utm_source=gb-gplus-shareBrevet US3934347 - Dental prosthetic structure and method
