cosmetic dentistry - beauty & science

20 I I special topic _ lithium disilicate veneers Given that there was a demand for the highest level of aesthetics in this case, the ceramist decided that all four restorations were to be made using the cut-backtechniqueonpressedcopingsandveneers inordertoachieveahighdegreeofindividualisation using the Incisal materials of the IPS e.max Ceram range. Once received from the laboratory, the restora- tions were treated with hydrofluoric acid gel and a silane agent. The restorations were tried in before glazing and then cemented after the final check (Fig. 10). For adhesion, we used the resin cement VariolinkII(IvoclarVivadent)inatransparentcolour without a catalyst, taking advantage of light only polymerisation. The perfectly fitting crowns and veneers, even prior to cementation, indicated that we had met all thepreconditionsforasuccessfulfutureadaptation of the restorations to the soft tissue (Fig. 11). _Conclusion The aesthetic result and the optical properties of the overall restoration have demonstrated that whenitisnecessarytocombineveneersandcrowns at a minimal cost to the natural tooth structure, the best choice is the IPS e.max Press system, owing to its superb clinical performance, physical properties and reliability. With that knowledge, the treatment team is relieved of the dilemma of whether dif- ferentthicknessesofthefinalrestorationswillyield a different aesthetic result. The whole system has a much broader philoso- phy,thatnomatterwhatthebaseis(zirconia,metal substructure, pressed core), it does not affect the final result—a predictable aesthetic reconstruction of different core materials in a single arch. _Acknowledgement I would like to acknowledge Andreja Protic for the fabrication of the ceramic restorations, labora- tory photographs and material for this article._ Fig. 8_E.max pressed core veneered with e.max Ceram. Fig. 9_Restorations could be as thin as 0.4 mm. Fig. 10_Restorations immediately after cementation. Fig. 11_The restorations blended perfectly into the natural dentition. cosmeticdentistry 2_2012 Dr Igor Ristiç,after graduating in 1996,searched for the new frontiers and emerging trends in aesthetic dentistry and implantology.In 2001,he established his private practice, the Centre forAesthetic Dentistry and Implantology in Belgrade,Serbia.He loves teaching treatment planning and various clinical procedures nationally and internationally,through lectures,hands-on training and workshops with a focus on all-ceramic and implant restorative procedures.He is a certified member of the European Society of Cosmetic Dentistry board and an affiliate member of the InternationalAcademy for Dental-Facial Esthetics. He can be contacted at igor@iristic.com. _about the author cosmeticdentistry Fig. 10 Fig. 11 Fig. 8 Fig. 9