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CAD/CAM - international magazine of digital dentistry

40 I I industry report _ interview _When it comes to state-of-the-art CAD/CAM technology in dental laboratories, patients are in good hands with master dental technician Vanik Kaufmann-Jinoian. His numerous lectures on the subject are impressive proof of this. The proprietor of the Cera-Tech dental laboratory in Liestal near Basel has been a CAD/CAM user from the very be- ginning, as well as provided valuable input into the technology’s development through his active par- ticipation in it. Recently, he became a user of KaVo’s newARCTICACAD/CAMsystem.Weaskedhimabout his first impressions of working with the system. _CAD/CAM: You recently started using KaVo’s ARCTICA CAD/CAM system. You have extensive experience with CAD/CAM systems. What do you consider ARCTICA’s advantages to be? Vanik Kaufmann: First, there is the striped light scanner.Iparticularlylikethatitisasemi-automaticde- sign. With fully automated systems, I often encounter problems with cumbersome re-scans when the first scan was incomplete. Scans that require essentially no corrective work can be achieved with very little experi- ence.Inaddition,itworksextremelyquickly.Evenincases inwhichthescanshowsgaps,themodelcanbereposi- tionedaccordingly,perhapsbytilting,andthesoftware appliesanysubsequentcorrectionsautomatically. _And what are your experiences with the grind- ingunit? Ireallyappreciatethatitisacompactfive-axissys- temthatusesblanksveryeconomically.Furthermore, Iamfinallyabletoprocessmetal,somethingthatun- tilnowhadnotbeenpossiblewithsmallsystems. _Is zirconium dioxide still important nowadays? Therearestilldentistswhorequestmetalframe- works. When cobalt–chromium alloys are required, we have them externally made by selective laser sintering. When biocompatibility is required, we have to use titanium. We process a large number of titanium connecting bars and until now had to have them fabricated externally. Now, we are able to do this in house, and the design is simple and fast using the accompanying software. _Howpracticalisthesoftware? It is fantastically simple. For example, during the design of an anterior bridge, the automatically proposedcrowncanbemovedandrotatedthrough keycombinations,makingtheprocessconsiderably faster and simpler than with solutions that require multiple key clicks. Also, its operation is intuitive: within half an hour of receiving it, I was able to do abardesignwithoutahitchandwithoutanytrain- ing. KaVo’s hotline with remote support is equally fantastic and useful, especially in the early stages when one might have the occasional problem. The consultants are highly competent, they can log in remotely and point out mistakes on your own screen and give hints on how to do things even faster. _The multiCAD dental CAD/CAM software has an open interface, but not every scanner supplier offers an open interface. To what extent can you transferdata? Weareabletodothisnotonlywithmanufactur- ersthatprovideSTLfiles,butalsowiththosethatstill believe in the advantages of proprietary systems. We use Dental Shaper for Rhinoceros (CIMsystem) forthispurpose;itcanconvertallrelevantdatasets to compatible STL files. One could also use a printer (Solidscope). Vanik Kaufmann Fig. 1_Completed milled connecting bar with screwed locators fabricated in the ARCTICA Engine. Fig. 2_Two connecting bars with implant connectors milled from a titanium block. Fig. 3_A range of materials is offered: ARCTICA Elements of titanium, zirconium, glass-infused ceramics and plastic; in addition, an exchangeable holder offers the option of using third-party materials. CAD/CAM 3_2014 “It is fantastically simple!” Inthisinterview,VanikKaufmanndiscussestheadvantagesof KaVo’snewARCTICACAD/CAMsystem Fig. 1 Fig. 2 Fig. 3 CAD0314_40-41_KaVo 22.08.14 14:34 Seite 1

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