Method of modifying the gingival part of a virtual model of a set of teeth

Abstract

Disclosed is a method of generating and modifying a virtual model of a set of teeth, where the method provides that a restoration can be inserted into a physical model of the set of teeth manufactured from the virtual model of the set of teeth. A method of and a system for generating a virtual model of a set of teeth for manufacturing a physical model of the set of teeth, and to a physical model of a set of teeth.

1 . (canceled) 
     
     
         2 . An implant analog configured to be positioned in a hole in a gingival part of a physical model of a set of teeth, the implant analog comprising:
 a central volume extending along a longitudinal direction of the implant analog from a crown end towards a distal end,   a stop surface arranged at the distal end, the stop surface having a reduced cross-sectional area such that room is left for rounded corners of a wall of the hole,   a height inspection groove for visual or contact-based inspection of whether the implant analog is arranged in a correct position in the gingival part of the physical model of the set of teeth.   
     
     
         3 . The implant analog according to  claim 2 , having a cross-sectional shape such that the implant analog can be inserted only in the correct anatomical position and orientation in the gingival part. 
     
     
         4 . The implant analog according to  claim 2 , wherein the implant analog is a non-rotation implant analog. 
     
     
         5 . The implant analog according to  claim 2 , wherein the implant analog has a shape with a reduced cross-sectional rotation symmetry. 
     
     
         6 . The implant analog according to  claim 5 , wherein the reduced cross-sectional rotation symmetry is an N-fold symmetry, wherein N is an integer number below 25. 
     
     
         7 . The implant analog according to  claim 2 , wherein the implant analog has no rotation symmetry in its cross-sectional plane. 
     
     
         8 . The implant analog according to  claim 2 , wherein the stop surface is arranged centrally around the longitudinal direction of the implant analog. 
     
     
         9 . The implant analog according to  claim 2 , wherein the stop surface is plane and horizontal relative to the rest of the physical model and/or relative to an insertion direction of the implant analog in the gingival part. 
     
     
         10 . The implant analog according to  claim 2 , wherein an overall form of the stop surface is sloping, slanting or inclined. 
     
     
         11 . The implant analog according to  claim 2 , wherein the height inspection groove extends around the entire circumference of the implant analog, forming a band-shaped height inspection groove which can be seen from all directions in a cross-sectional plane intersecting the height inspection groove. 
     
     
         12 . The implant analog according to  claim 2 , further comprising a cover attached to the implant analog.