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A prosthetic crown is a permanent restoration in the oral cavity used in case of extensive damage or complete lack of crown, when the root of the tooth has not been damaged yet. The crown covers all surfaces of the tooth and is mechanically resistant, which provides additional reinforcement to the remaining structures of the treated tooth.

High aesthetic expectations set for prosthetic restorations led to a number of studies focused on finding a prosthetic solution that will best imitate the natural tooth enamel. Currently all-ceramic restorations are considered one of the best. The high standard of restoration is achieved thanks to the use of computers at every stage of design and production. Thanks to this, the prosthetic restoration has the same characteristics as a natural tooth.

The main feature that distinguishes an all-ceramic crown from a classical porcelain crown on metal is the presence of a ceramic root that replaces the metal one and closely resembles the natural structure of the tooth.

1. HIGH AESTHETICS

All-ceramic restorations revolutionised the opportunities for obtaining crowns of high aesthetic value. A natural tooth is transparent enough for the light to penetrate through its entire thickness. A similar effect is achieved with all-ceramic restoration, which provides sophisticated aesthetic effects that imitate natural teeth.

In case of all-ceramic restorations and in contrast to porcelain crowns on metal, we can also avoid the blue gum effect around the neck of the tooth.

2. BIOCOMPATIBILITY

In the oral environment, metal alloys used in prosthetic restorations may undergo corrosion and can demonstrate toxicity. Corrosion is caused mainly by common metals ions.

The reaction to ions is manifested by allergy symptoms. Typically, local symptoms dominate, such as for example gum reddening. The reason for this are the ions penetrating the surrounding soft tissues. In case of all-ceramic restoration this phenomenon is absent, as Cercon is completely neutral to body tissues.

3. PRECISION, ACCURACY AND ARTISTRY The ideal adhesion of the internal part of the crown to dental hard tissues is obtained thanks to using a computer at every stage of the creation of the crowns – CAD/CAM.

CAD, i.e. Computer Aided Design refers to the use of a computer at every stage of the design process, while CAM (Computer Aided Manufacturing) supports the manufacturing process. Thanks to the use of CAD/CAM, as well as the use of cercon oxide, we obtain prosthetic restorations of the highest quality.

The CAD/CAM technology, which is used in the manufacturing process enables to achieve perfect crown impermeability. Crown design is visible on the screen ,which allows for multiple zooming that takes care of the finest details of the crown. Computer-manufactured prosthetic reconstructions are characterised by high precision, and thus very good adhesion, which exceeds restorations produced using traditional methods. The entire process is completed with the use of a computer and design software, which eliminates many potential human errors.

The main advantages of all-ceramic crowns include:

  • Stunning aesthetic effects;
  • Natural transparency;
  • Very high resistance and durability;
  • Perfect adjustment;
  • No tissue irritation or allergy.

They are used primarily to restore front teeth, as this material (zirconium dioxide) performs very well in areas of great aesthetic significance. Thanks to its physical properties zirconium dioxide enables to reconstruct not only single teeth, but also groups of teeth in the form of bridges (even very extensive), connectors or crown-root inlays used in the reconstruction of dead, endodontically treated teeth.