Crowns & Bridges

Metal-Crowns can be made with non-noble metal-alloys or with noble metal-alloys. Noble metal-alloys are however more precise, noncorroding and therefore more durable.

Since the crowns have a metal color they are only – if at all – used at the posterior teeth.

Using the porcelain bonded crowns it is possible to rebuild the tooth –optically – lifelike. For this method a tooth-coloured porcelain material is burned onto a noble metal-crown

Disadvantageous is that caused by different lights the metal crown underneath the porcelain is sometimes visible. This disadvantage can most of the time be removed by an individual layer of porcelain.

Another disadvantage is that if the tissue of the gums decreases a little bit the metal edge is visible. This disadvantage can be removed by producing a porcelain shoulder. This method is nevertheless really complex because in the edge area another step needs to be primed.

Compared to the porcelain bonded crown, where the basis of the crown is still metal, the zirconium oxide crown is based on zirconium oxide. Therefore a precise sharpening robot shapes the basis out of a stable industrial build zirconium oxide block. The later-on burn-up of the porcelain works similar to the procedure to the porcelain veneer crowns. Since this kind of crowns is metal free it is a possible alternative for metal-allergic people.  Compared to the cast-crowns they are fixed conventional, means that they can also be used if the defect reaches far underneath the tissue of the gums.

Full porcelain crowns are –like the name already says- free from any metal. This kind of crowns is mostly used for front teeth. They work aesthetically really well since if light hits the teeth it can shine through. The production of this kind of crown is even more complex than the production of the galvano-crowns. She represents for both dentist and dental laboratory the most difficult kind of Provision.