Crowns

Dental crowns, what types are there ?

Dental crowns made of full ceramics or veneered with ceramics - if a little more tooth substance has already been lost that cannot be replaced by conventional fillings. In this case, the existing tooth is ground down to create sufficient space for the subsequent crown restoration. After taking the impression, choosing the exact color and making the model, the crowns are made in the laboratory and then cemented by us. Depending on the tooth, the visible position in the mouth and the aesthetic requirements, 2 types of crowns can be distinguished:

Metal-ceramic crown: As the name suggests, the inner cap is made of metal that is veneered with a special ceramic.

All-ceramic crown: Here the coping is also made of ceramic, especially in the visible tooth area (front teeth) these crowns offer a significant aesthetic advantage, as they can be designed even more natural than comparable metal-ceramic crowns.

Implant crown: In this case, the crown is not screwed or bonded to the patient's own tooth, but to the underlying implant. For more information see www.felixwick.at

When is a dental crown with post build-up, i.e. post crown necessary ?

If, due to a carious defect, only very little of the tooth crown is left or only the tooth root remains, a so-called post is required as an additional anchorage for the crown, which - not to be confused with the implant, which is anchored in the toothless bone - is placed inside the root. This post can only be placed in the tooth that has already been treated with root canal therapy (see picture below of individual gold post).

The so-called post can be individually cast from a gold alloy or fabricated (if a little more of the tooth crown is still available as an additional anchorage) as a so-called fiberglass post. This abutment is then milled and molded in order to have a full or metal-ceramic crown fabricated, depending on the aesthetic requirements.

Fiberglass pin or gold pin for anchoring ?

To meet the esthetic requirements in the anterior region, we prefer to use fiberglass posts as post restorations. The material properties of these posts are more similar to those of teeth and reduce the possibility of metal showing through the tooth crown. However, the use of glass fiber posts always depends on the location of the tooth defect, which then makes the use of an individually fabricated post advisable.