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| case report full mouth restoration 36 CAD/CAM 3 2016 (Fig. 13). It is also more comfortable. In fact, at the design stage of the implant pillars, the technician can suitably adjust their shapes in line with the fu- ture prosthesis. This then facilitates the production ofceramiccrownswiththeidealshape.Withtrans- screwedprostheses(Figs.14&15),thereislessroom for manoeuvre, which leads us to make more volu- minous teeth in some cases. Pieces are more likely to break off ceramic crowns if the screwing chan- nels are slightly off centre from the middle of the occlusaltable.Infact,thesolidityofaceramiccrown is dependent on its width and the support it derives from the framework. This is sometimes lacking in fineareaswhichextendthescrewingchannels.This is why it is recommended, if aesthetics permit, to make these areas fully metallic rather than to cover themwithafineceramiclayer.Trans-screwedpros- theses, on the other hand, have the advantage of beingeasytodismantle.Theycanthereforebeeasily cleaned to prevent peri-implantitis. Finishing and polishing of ceramics If the maxillary implant validation key has been created in advance, the occlusion is reliable and the aesthetic mountings have been validated, it is certainly possible to limit the number of dental appointmentsandmountthecosmeticmaterialdi- rectlyfollowingthemanufactureoftheframeworks. The projections and lengths of the teeth are com- pared with the aesthetic assemblies once again. However, the ceramic material is not polished in order to allow the technician to make the final aesthetic adjustments (Figs. 16–25). Conclusion The laboratory has been equipped with CAD for morethan6yearsnow,whichgivesusagoodgrasp of the technology. This transition was smooth but not without problems. In fact, at the time the soft- waredidnotfunctionsowellandanumberofthings werenotaseasytoperformastheyaretoday.What isfascinatingisthecontinuingdevelopments.After the laboratories, the dental practices now need to discover digital tools. Work techniques will conse- quently continue to develop. It is important not to lose sight of what is fundamental to both our pro- fessions and to obtain, thanks to CAD/CAM, even better results, which are more practical, more rapid and, above all, more predictable. Acknowledgement I would like to thank Dr Schleicher for his close co-operation and the clinic, as well as Simeda, Anthogyr, BEGO, Euromax and Advanced Dental Factory for their participation._ Fig. 22: Finished restoration —occlusal view. Figs. 23–25: Finished restoration in patient’s mouth. contact Richard Demange, CEO of a CAD equipped laboratory: Laboratoire Dental Art Technology in Nice for 10 years contact@dental-art-technology.com www.dental-art-technology.com Fig. 22 Fig. 23 Fig. 24 Fig. 25 32016