¹facUltY of medicine, UniverSitY of niS, SerBia
²Private dental Practice ’mirjana BoSkovic’, niS, SerBia
³facUltY of dentiStrY, dePartment of ProStodontHicS, Pancevo, SerBia

The fabrication of an esthetic restoration is a particular craft. The selection of the correct material for the respective indication is the first difficult task. The combination of materials and their compatibility is the second challenge. Even if an increasing number of fixed metal-free restorations are fabricated today, metal-ceramic restorations still constitute the largest share. Particularly in distal areas, where the restorations and bridges are exposed to high compressive, bending, shear and tensile forces, metal-ceramic restorations have proved their worth. This article shows three alloys from Ivoclar Vivadent(Liechtenstein): Colado CC is a cobalt-chromium ceramic alloy, Callisto CP⁺ is a cobalt- based alloy containing palladium and 4all is a nickel-chromium ceramic alloy.
In addition to a natural shade and shape, the imitation of irregularities (rotation, wear) and the surface structure are decisive for the lifelike appearance of a restoration. However, if the framework has not been correctly designed and the alloy cast and finished carefully, the longterm success of the restorations cannot be ensured. Hence, the correct framework design is the basis for a durable, esthetic restoration.

Key words: esthetic restoration, alloy, crown, bridge