Ceramic dental implant

Abstract

A dental implant is disclosed comprising an anchoring part for anchoring within a bone and comprising a mounting part for receiving a prosthetic build-up construction, wherein the anchoring part and the mounting part are configured integrally of a material comprising zirconia, wherein at least the anchoring part is treated at its outer surface at least partially by a subtractive, removing process, such as by sand blasting or is provided with a coating which facilitates an ossification.

What is claimed is: 
     
         1 . A dental implant comprising:
 an anchoring part for anchoring within a bone; and   a mounting part for receiving an element to be applied;   
       wherein:
 the anchoring part and the mounting part are integrally made of a material based on zirconia; 
 the anchoring part comprises a threaded section; 
 the mounting part has a frusto-conical or conical shape; and 
 the anchoring part has an outer surface that has been at least partially roughened by a removing process and has a maximum surface roughness between 1 and 20 μm. 
 
     
     
         2 . The dental implant according to  claim 1 , wherein the mounting part has an outer surface that has a groove or a recess that extends from an upper front surface of the mounting part toward a lower side. 
     
     
         3 . The dental implant according to  claim 1 , wherein an upper end of the anchoring part transitions via an enlarged conical section into the mounting part. 
     
     
         4 . The dental implant according to  claim 2 , wherein an upper end of the anchoring part transitions via an enlarged conical section into the mounting part. 
     
     
         5 . The dental implant according to  claim 1 , wherein the maximum surface roughness is between 1 and 12 μm. 
     
     
         6 . The dental implant according to  claim 1 , wherein the maximum surface roughness is between 1 and 6 μm. 
     
     
         7 . The dental implant according to  claim 1 , wherein the maximum surface roughness is between 2 and 6 μm. 
     
     
         8 . The dental implant according to  claim 1 , wherein the maximum surface roughness is between 4 and 6 μm. 
     
     
         9 . The dental implant according to  claim 1 , wherein the material based on zirconia is 92.1 to 93.5% by weight ZrO 2 , 4.5 to 5.5% by weight Y 2 O 3 , and 1.8 to 2.2% by weight HfO 2 . 
     
     
         10 . The dental implant according to  claim 1 , wherein the outer surface of the anchoring part has been treated by abrasive blasting. 
     
     
         11 . The dental implant according to  claim 10 , wherein the abrasive blasting is sand blasting. 
     
     
         12 . The dental implant according to  claim 1 , the outer surface of the anchoring part has been etched. 
     
     
         13 . The dental implant according to  claim 12 , wherein the outer surface of the anchoring part has been an abrasively blasted and subsequently etched. 
     
     
         14 . The dental implant according to  claim 1 , wherein the anchoring part is silanated or hydroxylated. 
     
     
         15 . The dental implant according to  claim 1 , wherein the mounting part is configured for direct mounting of a crown, bridge, or permanent prosthesis.