cosmetic dentistry_ beauty & science International Edition

I case report _ ceramic veneers The impressions were taken according to a double-layer one-step method with polyvinyl siloxane material of two different resiliences (BISCO, Inc.). Gingival retraction was performed using Ultrapak #0 retraction cord (Ultradent). Laboratoryprocedure The modern concept of “aesthetics” constitutes a significant challenge in the work of both the dentist and the dental technician. Society’s desire to be trendy means not only being associated with fashionable brands, but also emanating a healthy lifestyle. We want our design to attract the at- tention of others; we want others to perceive the beauty in us. The concept of “beauty” is difficult to define. But it is certain that beauty results from the harmony of shape and colour. The progressive development of technology in dentistry and dental techniques aids the ongoing elimination of errors and increase in predictability in every area of dentistry. However, many treat- ments still depend on the artistic work of the dentist and the dental technician. One area of work in which the technology has remained unchanged for many years is the feldspathic technique of the direct application of ceramics to a refractory mass followed by fusion. This technique offers the best cosmetic results. If we combine it with an artistic shape, we can achieve the full harmony of beauty. This technique requires above all a perfect ini- tial diagnosis. Why? The feldspathic technology is based on a homogenous structure of fused ceramics. There is no intermediate foundation between the patient’s tooth stump and the ve- neer ceramics as is the case with crowns fused to zirconium dioxide or metal. This means that there are no intermediate steps of control in the patient’s mouth. The feldspathic veneer or crown is removed from the refractory mass after sinter- ing. If the diagnosis was not correct and the patient is not satisfied with the work, there is no opportunity for any correction. Therefore, as we have mentioned, this technique, which mimics the beauty of nature, will yield satisfying results if the initial analysis and preparation are accu- rately performed before the fabrication of the veneers. Although the physical parameters of the material are unfavourable, restorations made from it—after correct adhesive application— aretheleastdefectivetypeofceramicrestoration. Of course, their application requires the fulfil- ment of many conditions, in the absence of which the work would fail. Feldspathic restoration can be performed only on incisors with straight chamfer preparation around the perimeter of the tooth. It is important that the patient demon- strate correct incisal and canine guidance, as well as lateral support. This type of restoration allows a dramatic reduction in the amount of preparation of the patient’s tooth. Therefore, we can use it to restore lost tissue and change colour, as well as to suc- cessfully correct diastemas and rotate teeth. The obtained values of veneer wall and crown Figs. 26a–d_The aesthetics of the smile after completion of the work. The black and white photographs show the texture of the veneer surfaces (case 2). 24 I cosmeticdentistry 1_2014 Fig. 26dFig. 26c Fig. 26bFig. 26a CDE0114_18-25_Michalik 11.06.14 14:05 Seite 7