Metal-ceramic systems have been used in prosthetic restorations in dentistry for about 40 years. Today, metal-free ceramic systems have been developed due to the increasing demand for materials with better properties in terms of biological compatibility and aesthetics. However, since the fracture and bending resistance of ceramic materials are low, various methods are applied to strengthen the ceramic.
The most recently developed ceramics for strengthening ceramics are zirconia-based ceramics. Due to its high mechanical and biological properties, it was first used in orthopedics for biomedical purposes in hip prosthesis production. It has been used in dentistry since the early 1990s. With the high mechanical properties of zirconia ceramics and their preparation using CAD-CAM methods, successful results are achieved in restorations.
Zirconia takes its name from the Arabic word ‘zargun’, meaning gold color. It was first obtained by German Chemist Martin Heinrich Klaproth in 1789 by heating zircon stone.
Zirconium is bright gray-white in color and is in group 4B of the periodic table. Its melting point is 1800 C and its boiling point is 4300 C. It has been used as a colorant with other oxides for many years. Thanks to its durability, resistance to corrosion and low thermal conductivity; It is used in the biomedical sector, in flash bulbs, explosives and in the production of artificial silk.
It is the reflection image of zirconium in light.
Today, zirconia is used in the production of posts, orthodontic brackets, implant abutments and inlay-onlay restorations in endodontics, in addition to being used as a substructure material in crown-bridge prostheses.
The average life of zirconium oxide is 20 years. There is no allergic reaction stated in printed publications. It does not interact with other materials. Effective insulation of ceramics against hot and cold effects. It provides better oral hygiene thanks to a smooth ceramic surface. Thanks to the impressive power of zirconium oxide, high durability offers a smaller frame requirement, durable aesthetics and the most natural appearance are provided.
As understood from the term "completely ceramic", zirconium smart ceramics do not need a metal frame. This provides a great advantage for the appearance of the restoration because zirconium oxide is white. A more natural appearance is achieved by using zirconium coating porcelain to provide better color and shape compatibility with neighboring teeth. Even thin sections are very strong, and zirconium restorations can be adapted to the natural environment of your mouth. Together with your natural teeth, they create a harmonious appearance by giving the appearance of your own teeth.
Beyond a better appearance, there are other values that determine the life and results of your investment. With zirconium smart ceramics, zirconium dental restorations are produced without compromising on aesthetics, harmony, durability and function.
Advantages of zirconium porcelain
- Light transmittance is higher than metal-based porcelain
- Natural appearance and aesthetic harmony in the mouth are better
- Since its thermal insulation is very strong, it is less sensitive than metal
- Ease of taking measurements without the need for step cutting with CAD cam technology
- It has high durability.
- It does not cause allergies
- When you take a height in metal-based porcelain or when the porcelain is broken from the occlusal, there is a metal reflection from below. There is a purple appearance at the transition points from porcelain to metal in the cervical region. However, this problem is not experienced in porcelains with a Zircon-based substructure.
- Offering a good alternative to patients
