| 摘要 |
The invention relates to a method for examining, prior to any implant drilling (2) taking place, a drilling jig (1) for the production of an implant-supported dental prosthesis. The drilling jig (1) that has been produced is placed on tooth structures (3) of a jaw region (13) that is to be provided with said dental prosthesis. A measurement body (11) is inserted into the drill guide (6) of the drilling jig (1), and the measurement body (11) and at least one sub-region (16) of the tooth structures (3) not covered by said drilling jig (1) are measured using an optical three-dimensional measurement method. From the data (24) generated by this optical measurement, the position and the orientation of the measurement body (11) are subsequently determined relative to the sub-region (16) of the tooth structures (3) and, based on this optical measurement data (24) and using the determined position and orientation of the measurement body (11) and/or the known dimensions of a drill to be used and/or the position of a stop surface (8) on the drilling jig (1) for the drill to be used, a virtual actual-implant drilling model (26) is produced, which actual-implant drilling model (26) is compared in terms of its position and its orientation to a planned virtual target-implant drilling model (29) from a previous implantation plan. |
