Please activate JavaScript!
Please install Adobe Flash Player, click here for download
ePaper created 2017-03-17, 11:21:45 | version 1.38.0
| industry report use of the magnification systems Fig. 31: The model with the prosthesis was inserted in the flask furnace for the processing. Fig. 32: The superstructure is being sandblasted and daubed with the prime and an opaque layer. Figs. 33 & 34: Details of the prosthesis after the resin injection. Fig. 35: The internal part of the superstructure has been polished and all the retentive caps are inserted, during the try-in test it will be decided whether they have to be replaced with more or less retentive caps. Fig. 31 Fig. 32 Fig. 33 Fig. 34 of the superstructure with a smooth friction, with the location of the attachments perfectly in the centre of the housings (Fig. 22). Only at this point were the black lab caps inserted, and the superstruc- ture was inserted on the bar after being sprayed with marking spray; this allows you to check how the attachments act during the insertion (Fig. 23). Once the superstructure was extracted, the attachments were checked using the microscope and it was detected that some areas were wrongly involved; indeed when the lacquer was removed (Figs. 24 & 25) around the attachments, incorrect contacts could be seen. As a consequence, the caps will not work in the retentive areas of the spheres, this is because some points of the bar will hinder the superstruc- ture’s insertion. Once those points of friction were removed at a second test, the structure sat better over the attachments (Fig. 26). Fig. 35 Fig. 36: Prosthesis and structures have been polished and ready for the final test. Fig. 37: The structure screwed into the oral cavity. the structure and of the retentive systems to be checked (Figs. 19 & 20). These magnifying devices, such as microscopes, allow for a better identification of the areas to be eliminated, and to distinguish those only to be polished, as metal abrasions must be eliminated (Fig. 21). As soon as all these points are correctly managed, the result will be a good fitting Fig. 36 Fig. 37 32 CAD/CAM 1 2017