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DENTAL TECHNOLOGY, JULY-SEPTEMBER 2023
cosmetic section 29

FIG 5: Due to the differences in prepared tooth shade and translucence, the shade effect was harmonized at depth using VITA LUMEX AC POWERWASH materials. Layering could then be com-
pleted in the same way.

FIG 6: The different types of restoration already seemed entirely natural on the model. FIG 7: Following fully adhesive insertion, the restorations blended in realistically with the
natural dentition.

with the identified tooth shade. Impressions were taken of the basic tooth shade. This ensures that the shade intensity of the
preparations and a master model fabricated in the laboratory on this veneering ceramic is not lost, even with translucent substructures
basis. The substructures of the restorations were fabricated using such as the veneer on tooth 21. The washbake on the more delicate
wax on the plaster dies. After separate spruing, investing and burn- veneer substructure was carried out using the more chromatic mate-
ing out, both substructures were pressed one after the other. As rial POWERWASH LL2. For the crown substructure on the discolored
there was almost no reaction layer, divesting was quickly completed, prepared tooth (tooth 11), the washbake was carried out using the
revealing homogenous surfaces and sharply tapering restoration less chromatic material POWERWASH LL0. The more chromatic
margins. material LL1 was only used on the margins not directly supported by
dental structures and on the incisal edge. After harmonization at
FIRED AND LAYERED depth in this way, it was possible in just a few steps to layer the
The washbake was carried out on the substructures using highly flu- dentin core and the enamel areas so that they would remain stable
orescent VITA LUMEX AC POWERWASH to harmonize the varying during firing. It was also possible to finalize both restorations in the
translucent effects of the different substructures with the required same way.