All-Ceramics - New Paths in Dental Aesthetics
Especially in the visible area of the oral cavity not only the functionality but also the visual impression plays a decisive role. Those who value aesthetic restorations should consider all-ceramic materials. Because instead of golden or even silver gray, the teeth appear in natural color. Like no other dental material, the structure of the all-ceramic resembles the enamel: it is slightly transparent, and the light can also penetrate into the deeper tooth layers. But even today a crown made of all-ceramic is not a matter of course. As a rule, crowns and bridges are produced, which have a metal framework as a "substructure". As a result, the light penetration can be disturbed, the tooth sometimes gray or yellow and less lively. Moreover, the metal-colored crown edge is visible even with a slight decrease in gums, if no so-called ceramic shoulder burn (ceramic veneering beyond the crown edge) was carried out. Thanks to new high-quality all-ceramic materials, however, in many cases even bridges can be made completely out of ceramic, which optically fit almost perfectly into the row of teeth. Even more impressive are results with so-called veneers. This therapy posed the greatest challenge to the practitioner. Deciding on such a measure requires profound knowledge of the morphology of the tooth, the material and the tooth structure and color. Also functional and preventive aspects are relevant. By choosing the right variety, it is possible to achieve dental replicas that are equal to the natural model. Caution should be exercised in prefabricated systems that offer only uniform ceramic shells without lively layering of ceramics. For a good result, an individual color and shape analysis is indispensable. The advantage: the restoration is difficult to recognize even for experienced eyes. But not only in terms of aesthetics is the advantage of all-ceramics obvious. Metal-containing materials can cause allergic or toxic reactions. Restorations with all-ceramic inlays or crowns, however, are biologically harmless. They lead to less irritation of the surrounding tissue and can usually be made tooth-preserving. The processing and production of these aesthetically highest demands of living tooth replication places high demands on the dentist and the dental laboratory. Since we want to set a high standard in the field of all-ceramics, we do not use so-called chairside solutions in which the tooth is milled at the dentist's chair. The number of ceramic materials used is steadily increasing. It requires appropriate experience to select and process the ceramic material suitable for the respective indication. Whether inlay, veneer, crown or bridge, a full-ceramic treatment made by specialists is a guarantee for aesthetics, durability and functionality. Not infrequently, in the preparation of these restorations, whitening measures are carried out.