Impression scanning for manufacturing of dental restorations

Abstract

A method of obtaining orientation and localization of at least one dental implant includes the following steps: (a) obtaining an impression comprising at least one fixated impression abutment corresponding to the at least one dental implant(s) and/or obtaining an impression comprising at least one fixated impression abutment corresponding to the at least one dental implant(s) on which is mounted a scan implant/analog (b) obtaining pre-determined information of the shape of the impression abutment and/or scan implant/analog, (c) scanning at least a part of the impression, wherein the part includes the at least one impression abutment and/or scan implant/analog thereby obtaining scan data, (d) determining the orientation and localization of the dental implant based on the pre-determined information and the scan data.

1 . (canceled) 
     
     
         2 . A method of manufacturing a dental model of at least a part of a jaw, the method comprising:
 obtaining a three-dimensional model of at least the said part of the jaw by either impression scanning, in-the mouth scanning, CT, MR or x-ray scans, scanning of a positive model or a combination thereof,   manufacturing a dental model from the obtained three-dimensional model, and   including at least one implant analog in the dental model.   
     
     
         3 . The method of  claim 2 , wherein the implant analog is included by adding a virtual slot to the obtained three-dimensional model and mounting said implant analog in the resulting slot of the manufactured dental model. 
     
     
         4 . The method of  claim 2 , wherein the implant analog is included by manufacturing the implant analog as an integrated part of the manufacturing process. 
     
     
         5 . The method of  claim 2 , comprising inverting the surface orientation of the three-dimensional model prior to manufacturing. 
     
     
         6 . The method of  claim 2 , comprising attaching the surface of the three-dimensional model to a CAD base prior to manufacturing. 
     
     
         7 . The method of  claim 2 , comprising obtaining a virtual solid model from the three-dimensional model prior to manufacturing. 
     
     
         8 . The method of  claim 7 , comprising including at least one articulator interface into the virtual solid model. 
     
     
         9 . The method of  claim 7 , comprising adding a model of a pre-manufactured interface/base in the virtual solid model. 
     
     
         10 . The method  claim 8 , comprising sectioning the three-dimensional and/or virtual solid model prior to manufacturing. 
     
     
         11 . The method of  claim 10 , wherein means for positioning subsections of the sectioned model are included in at least one subsection obtained by sectioning. 
     
     
         12 . The method of  claim 11 , wherein said sectioning and positioning means allows for the removal and reinsertion of parts of the produced dental model. 
     
     
         13 . The method of  claim 12 , wherein the parts of the produced dental model comprise a model of a preparation. 
     
     
         14 . The method of  claim 2 , wherein both the Maxilla and Mandible models are manufactured. 
     
     
         15 . The method of  claim 2 , wherein said implant analog is included in the design process. 
     
     
         16 . The method  claim 2 , wherein said implant analog manufactured by same process as the dental model. 
     
     
         17 . The method of  claim 2  wherein the position and orientation of said implant is found by scanning the impression and/or positive model of a healing abutment. 
     
     
         18 . The method of  claim 17 , wherein the position and orientation of said implant is found by aligning the data from said scanning with pre-determined information of the healing abutment. 
     
     
         19 . The method of  claim 18 , wherein the pre-determined information of the healing abutment comprises a CAD model of the healing abutment. 
     
     
         20 . The method of  claims 17 , wherein said healing abutment comprises one or more marks allowing for the identification of one or more characteristics of said healing abutment and or implant to which said healing abutment is/were connected. 
     
     
         21 . The method of  claim 2 , wherein the dental model is manufactured by rapid prototyping equipment. 
     
     
         22 . The method of  claim 2 , wherein the jaw is an upper jaw and/or a lower jaw.