The introduction of metal ceramics more than 40 years ago has been a significant progress in the production of prosthetic supplements in the natural color of teeth. The disadvantages of dental supplements with plastic facets (e.g. color change due to the porosity of the material, quick waering off, i.e. the abrasion of the material) are removed by using dental ceramics as a material for making prosthetic supplements.
Supplements made of metal ceramics have since proved to be a standard procedure in dental prosthetics. Consequential improvements in materials have led to aesthetically optimum results, particularly in the area of dental necks. The risk of a lower quality of binding the metal cap and the coating material can now be considered solved, at least in those alloys of precious metals containing a high percentage of gold.
During a long clinical use, metal ceramics has proven to be safe and clinically tested material. Metal ceramics is also a comparative standard for the assessment of innovative methods of reconstruction (replacement) in dental prosthetics. But, the quality of a metal cap not to pass the light has a limiting effect on the aesthetic result of the supplement made of metal ceramics. In addition, there is also a risk of allergic reaction to the material, especially in alloys with non-precious materials (e.g. nickel, cobalt, chrome).
On the other hand, supplements made of full ceramics provide much greater opportunities thanks to greater transparency and better passage of the light. Excellent biocompatibility and low tendency to plaque formation make this ceramics an ideal material for the production of dental supplements.
In our laboratory we use high quality metals that do not contain nickel, which can cause allergic reactions, and ceramics which is applied to the metal of renowned Ivoclar company from Liechtenstein.