Badly damaged teeth can be restored with a crown. It is like a protective cap which is placed over the treated and prepared tooth, so that the tooth gets back its natural shape and stability.
But there are different crowns available. As with virtually any restorative care, there are several options to choose from, using different materials and processing technology. Metal ceramic crowns – also called veneer crowns – are now considered standard care. Porcelain crowns and so-called Zirconium crowns are other alternatives.
Metal ceramic crowns
The metal ceramic crown is still the crown type most commonly used. It consists of a metal cap which is veneered with tooth-coloured ceramic. The metal gives the crown its grip.
The design used by the dental technician involves a layer by layer ceramic veneering and ensures that the crown does not look like dentures, but like a natural tooth. Natural looking results, such as matching the colour exactly with the adjacent natural teeth, places higher demands on the dental technician than any other type of crown restoration.
- Extremely high stability / Durability (more than 20 years)
- A metal ceramic crown usually requires more tooth structure removal than adhesive (glue) full ceramic restoration, especially with minimally invasive partial crowns.
Zirconium crown (Full ceramic crowns)
Full ceramic crowns are made entirely of porcelain. They do not affect your health, the material does not trigger allergies in contrast to metal crowns. In addition, porcelain crowns look very similar to real teeth. Therefore, doctors recommend this kind of crown for the teeth that are at the front, the visible region, as well as the molars. The porcelain mixture with Zirconium Dioxide can withstand the same pressure as metal alloys.
For patients who do not want to make compromises in terms of aesthetics, the full ceramic crown is the best solution. It no longer uses metal. Both the framework and the veneer are made of a high quality and stable ceramic, which has exactly the same light-conducting properties as the natural tooth structure.
The dental technician has even designed it, so that the colour, texture and other characteristics correspond exactly to your own tooth substances.
Moreover, today high-strength Zirconium oxide ceramics are available. Though these ceramics lack the enamel-like transparency of the glass ceramics, but they are particularly good because of their high strength for full ceramic crowns or bridge frameworks, they are similar to the caps from metal ceramic crowns and veneered individually.
These crowns have many advantages
- They are 100% metal-free, making it ideal for people with allergies
- The colour of the Zirconium crown can be altered to match your own teeth in the front and side regions of the mouth.
- The optimal light transmission makes the crown look like a natural tooth, even in difficult lighting conditions. No black borders can be seen at the neck of the tooth or even when the gums retract
- In addition ceramic is an excellent thermal insulator. The crowns are therefore not sensitive to temperature stimuli e.g. ice or hot coffee.