Zirconium oxide-based dental implant and method for producing said dental implant

Abstract

A dental implant for a patient includes an anchoring part to anchor the dental implant in the bone and an abutment that is designed for fixation of a crown or similar supraconstruction and is or can be connected to the anchoring part. The anchoring part and the abutment are manufactured on a zirconium-oxide basis. The anchoring part and the abutment have special sections corresponding to the individual dimensions of the patient's bone and/or gums, said sections comprising a roughened surface designed to promote bone fusion. The special sections are produced on the green compact before the latter is finally sintered.

1 . A dental implant for a patient, the dental implant comprising an anchoring part adapted to anchor the dental implant in a bone of the patient and an abutment that is adapted for fixation of a supraconstruction thereto, the abutment being connected to the anchoring part, the anchoring part and the abutment being manufactured on a zirconium-oxide basis, and at least one of the anchoring part and the abutment comprising sections corresponding to individual dimensions of the patient's bone and/or gum tissue, the sections having a surface that has been roughened to promote at least one of bone fusion and ingrowth of the gum tissue into the implant and having been produced on a zirconium-oxide green compact prior to it being finally sintered. 
     
     
         2 . The dental implant according to  claim 1 , wherein the sections have been roughened by sand blasting. 
     
     
         3 . The dental implant according to  claim 1 , wherein a transition region between the anchoring part and the abutment is finished in accordance with individual dimensions of the patient's bone by milling of the zirconium-oxide green compact. 
     
     
         4 . The dental implant according to  claim 1 , wherein the anchoring part and the abutment are constructed in one piece. 
     
     
         5 . The dental implant according to  claim 1 , wherein the anchoring part defines a surface designed to be driven into a bore in the bone and a concentric bore adapted to receive a pin to assist retention, guidance and driving-in of the anchoring part. 
     
     
         6 . The dental implant according to  claim 5 , wherein the anchoring part and the abutment are integrally constructed and the bore extends through the abutment into the anchoring part. 
     
     
         7 . The dental implant according to  claim 1 , wherein the anchoring part is manufactured separately from the abutment and comprises a coaxial bore for fixation of the abutment thereto, the abutment being provided with a corresponding pin, the bore being closable by a silicone stopper.