CAD/CAM international magazine of digital dentistry

I feature _ interview 12 I _To be held for the first time in South-East Asia, the seventh CAD/CAM & Computerized Dentistry In- ternational Conference in Singapore in October will offeradetailedoverviewofthelatestCAD/CAMtech- nologies that are aimed at helping dentists achieve aesthetic and long-lasting all-ceramic restorations chairside. During a presentation in Cape Town, South Africa, CAD/CAM had the opportunity to speak with Ivoclar Vivadent’s Dr Michael Dieter, head of the International Center for Dental Education, who will behostingthelecturetheatretogetherwithJörgVogt, internationalCERECtrainerforSirona. _CAD/CAM: Dr Dieter, your joint presentation with Mr Vogt in Singapore will be held in form of a lecturetheatre.Whatisbehindthisconcept? Dr Michael Dieter: Jörg Vogt and I developed this concept two years ago. When the organiser’s manag- ingdirector,DrDobrinaMollova,sawourperformance at the sixth CAD/CAM & Computerized Dentistry In- ternational Conference in Dubai last year, she named it a “lecture theatre” because of its truly interactive nature.JörgandIpresentincontinuousdialoguewith eachother,whichmakesthelecturemoreinteresting, not only for the audience but also for us. Additionally, case demonstrations with the CEREC AC will be per- formedliveonstage. Primarily, our lecture is aimed at dentists who are interested in minimally invasive aesthetic treat- ment solutions or who simply want to get into dental CAD/CAM technology. Our goal is to provide a pre- dictable guideline for the clinical treatment sequence using chairside CAD/CAM technology. However, the lecture is also suitable for any dentist who is interest- ed in all-ceramics as a modern restorative treatment option. From my experience, I can say that many practi- tioners still have little knowledge of what all-ceramic material they are supposed to use for various clini- cal situations. With our lecture theatre, we aim to demonstrate the main differences in terms of aes- thetics, particularly for use in the anterior dentition, and the physical properties or strength of the various all-ceramicsystems. _What do you think the reason is for this lack of knowledge? Recently, we have seen the rapid development of materials and technologies. For the practitioner, it is sometimes difficult to keep up with all these new developments. This is why continuous education is becomingmoreandmoreimportant. If we look at the increasing number of all-ceramic systems on the market that manufacturers claim to beaesthetic,wecaninfactperceivesignificantdiffer- ences. The questions remain: what does “aesthetic” mean, and how suitable are these materials in clinical reality?Thisisexactlywhatwewillbediscussinginour lecture: translucency, opalescence and fluorescence —these optical properties of the natural tooth can be reproducedinthepatient’smouthwithselectmodern all-ceramicmaterials. While I will focus on the treatment sequence from a clinical perspective, Mr Vogt will provide insights into the CAD/CAM process using the CEREC AC and thelatestsoftware(version4.03).Hewilldemonstrate live, step-by-step, how to design the restorations and Iwillillustratetherelatedclinicalcases. _What are the most common mistakes when choosingmaterials? Selecting the right material is not the only difficul- ty. The correct tooth-preparation technique remains a challenge for many dentists because all-ceramics require an entirely different preparation design com- pared with the commonly used metal alloys or metal ceramics. If mistakes are made at the beginning, frac- ture of the restoration becomes much more likely. Therefore,preparationtechniquesforall-ceramicswith regardtoCAD/CAMapplicationwillbeinfocusaswell. CAD/CAM 3_2012 Dr Michael Dieter “Lecturetheatre” —anewinteractiveconcept— onchairsideCAD/CAMdentistry An interview with Dr Michael Dieter, Ivoclar Vivadent, Liechtenstein