CAD/CAM - international magazine of digital dentistry - wydanie polskie

40 1_2014 CAD/CAM 40 case report _ CAD/CAM in implantology 20 I I case report _ CAD/CAM in implantology prove its size and shape. Only if the fit is perfect will a substructure be cut out from zirconium dioxide. The choice of material is something that should be considered very carefully. Observing the rule of “what, where and when?”, the choice will depend on the position of the abutment, its colour charac- teristics and the quantity of light diffusion needed. Thelastfactorhasagreatimpactonthenaturalap- pearance of the prosthetic restoration. For this very reason, I try above all to use all-ceramic materials, especially in the anterior section. The material used in the present case study was zirconium dioxide (Robocam), which is processed in a machine supplied by the same company called Robomill 5. The machine mills all available soft materials and the water cover makes it possible to cut IPS e.max ceramics (Ivoclar Vivadent). Followingaconsultationwithanattendingden- tist, it was agreed that owing to the large super- structure of the mucosal section on the vestibular side the restoration would have to be screw re- tained. Such a solution ensures that the patient’s oral hygiene can be examined frequently in that area.Theabutmentandcrownwerejoinedtogether in the laboratory in order to avoid any possible complicationsowingtoexcesscementleftafterthe restoration had been placed in the patient’s mouth. The part serving as the emergence profile of the crown from the gingiva was not covered with ve- neering porcelain. It was only polished to a shine without covering it with glazing. The surface of the zirconiapreparedinsuchawayhasagreaterchance of adhering tightly to the patient’s gingiva. The present case study confirms that modern prosthetics could not exist without modern solu- tions such as CAD/CAM. _Summary What other innovations will surprise us in the not-too-distant future? Will traditional layering and firing of ceramics be replaced by other meth- ods? This remains an open question, but perhaps the profession of the dental technician will soon be limited to working only and exclusively with com- puters. _Acknowledgements Iwouldliketothankmywife,DorotaMichalik,for her artistic veneering of the prosthetic restoration presented, as well as Dr Kristian Owczarczak, for his great contribution as a dentist, and with whom I carried out the clinical case study._ All the prosthetic restorations were made using the CAD/ CAM Robocam, and the materials used were Robocam zirconiumdioxide,IPSe.max(IvoclarVivadent)andVision veneeringceramics. Figs. 22a & b_Pre- and post-op situation. CAD/CAM 2_2012 Robert Michalik graduated from the Faculty for DentalTechnicians inWarsaw Medical School in 1987. After two years of work in the Medical University’s dental laboratory,he opened his own dental laboratory,Inter-Dent, which he is still running.In 2003,he was the first in Poland to start working with dental CAD/CAM systems.In 2007,he began development of the first Polish CAD/CAM system in collaboration with Delcam and 3Shape.Also in 2007,he submitted an application to patent a method of creating telescopic crowns with intermediate crowns. He is the author of several articles for the trade press. Laboratorium Inter-Dent Ul.Pustułeczki 23 02-811Warsaw Poland www.inter-dent.pl info@inter-dent.pl CAD/CAM_about the author Fig. 22a Fig. 22b