“New products have made me more efficient”
Have you had the opportunity to work with the new ceramic products from Ivoclar Vivadent, or have you not yet had a chance to try IPS e.max Power Dentin, IPS Ivocolor and Wieland Zenostar MT? This interview will give you an exciting introduction to these new products!
Vincent Fehmer, a master dental technician from Geneva, Switzerland, is experienced in using the IPS e.max Press and Power materials, the Ivocolor staining and glazing system and the Zenostar MT ingots from Wieland. He is enthusiastic about these products and has had a great deal of success with them. He shares his impressions in the following interview.
Mr Fehmer what would you like to tell us about your work with the IPS e.max Power Dentin materials and the new IPS e.max Press MT ingots?
Vincent Fehmer: I’ll be quite frank with you. Initially I did ask myself, do we really need the new Power Dentin materials and the MT ingots? Then I was given the opportunity to try them. In the meantime, both products have won me over completely. Because of its wonderful brightness, the MT ingot is now my favourite.
It’s hard to believe with how very few materials I can get by these days. I usually select the Dentin ingot in a shade that is a little lighter than the final restoration. I minimally cut back the buccal areas of the restoration and then build them up with IPS e.max Power Dentin and Power Incisal. Next, I use IPS Ivocolor stains to characterize the restoration surface. In the past, when I used translucent shades in particular, my work sometimes had a greyish tinge. This problem has been resolved almost entirely. As a result, life has become much easier. This is clearly one of the main advantages, besides the fact that in many cases I am able to work with considerably fewer materials and thinner layers. Consequently, I can obtain results more efficiently and reliably. In addition, the risk of chipping is minimized.
And what about IPS Ivocolor – is it to your liking?
Vincent Fehmer: Yes, absolutely. I’m sure many of my colleagues will agree with me. Dental technicians simply adore using stains. These materials simplify our lives quite considerably. Layering with different materials is extremely time-consuming. With stains the same effects can be created much more easily. And the materials don’t take up a lot of space on the work bench.
I particularly like the fact that the powders have become much finer. Finely ground shades are easier to use, since the grains are not visible as individual dots. Besides, I like premixed colours, because they are homogenous and easy to handle.
I think it was a good idea to introduce a universal staining system to the market – and also to establish a melting point in the range of 710° C. This offers the possibility of subsequently adjusting the shade of lithium disilicate restorations without the risk of further melting together or vitrifying previously applied materials. Offering one system that covers all the different applications is a step in the right direction. It will benefit entry-level technicians in particular. In addition, it reduces the risk of error and failure.
What kind of a role do you think zirconium oxide will assume in the future?
Vincent Fehmer: I think zirconium oxide has a great deal of potential – especially with regard to the individually infiltrated, highly translucent types that are available today. It represents the only viable alternative to conventionally made metal-ceramic restorations in the fabrication of multi-unit bridges.
I believe that monolithic restorations hold the key to heightening our efficiency. Only if dental technicians can work with monolithic restorations, will they be able to take advantage of the efficiency offered by digital design technology. What’s more, I think that monolithic restorations will allow dental technicians to produce better work on average because they will encounter fewer risks and sources of error.
Personal details: Master Dental Technician Vincent Fehmer has been working at the Clinic for Fixed Prosthodontics and Biomaterials at the University of Geneva since 2015. He also runs a private dental laboratory in Lausanne (both in Switzerland). He received his dental technician training in Stuttgart, Germany, between 1998 and 2002. Subsequently, he worked in dental laboratories in the UK and the US.
IPS e.max is a registered trademark of Ivoclar Vivadent AG. Zenostar is a registered trademark of Wieland Dental + Technik GmbH. The availability of products may vary from country to country.