Ceramic Fused To Zirconia Crowns
Zirconia crowns are the latest technology in cosmetic dentistry and the most suitable choice for a white and perfect smile.
Zirconia replaces conventional metal and is used as the core of the ceramic tooth.
The most important advantage of zirconia is on the one hand its full biocompatibility with the tooth structures and the gums, and on the other hand its translucence which makes it resemble a natural tooth. As a result it is sometimes difficult even for a dentist to distinguish it from the natural teeth.
Zirconia (zirconium oxide) is very durable and does not corrode. Therefore, zirconia crowns may be used by persons who suffer from allergies to metals.
Zirconia crowns are manufactured using CAD-CAM computerized technology which is available in dental laboratories that have special equipment required to this purpose.
CAD (computer aided design) technology is used to create computer-defined models based on geometrical parameters. Models are usually displayed on screen as tridimensional structures.
The CAD system allows the dental laboratory staff to view various versions of a dental crown and to test its compatibility and integration based on real life simulations.
CAM (computer aided manufacturing) technology uses the geometrical design data exported from CAD to control automated manufacturing equipment.
Lyrdent Dental Clinic cooperates with “Dr. Fischer” dental laboratory which employs CAD-CAM technology to produce the most dazzling zirconia crowns.
ZIRCONIA CROWNS VERSUS METAL-CERAMIC CROWNS
Do you want to find out more about zirconia crowns in order to be able to decide whether they are the best choice for you?
What is a dental crown?
A dental crown is a dental restoration which completely covers a tooth or a dental implant. Crowns are available in various materials and supports (all-ceramic, gold, zirconia, chromium/nickel, etc.)
What is zirconia?
Zirconia (zirconium oxide) is a very strong white material which resists wear in a degree similar to natural teeth.
Zirconia is used as the core of the porcelain cap which is shaped so as to match the neighboring teeth.
The ADVANTAGES of zirconia crowns are self-evident:
-The unique advantage of zirconia relates to its aesthetic appearance. Its natural appearance is due to the light which passes through. As a result, a zirconia crown is hardly distinguishable from a natural tooth.
Metal-ceramic crowns have an opaque appearance as the metal prevents light from passing through.
-Zirconia is a biocompatible material. Therefore, it does not cause any adverse reaction and it is not rejected by the body. Because it is biocompatible, it resists a long time in the mouth.
-Zirconia does not corrode. Therefore, the grayish line visible along the gums with metal-ceramic crowns is not an issue with zirconia crowns.
-Additionally, the patient does not feel a greater sensation of heat and cold as with metal-ceramic crowns because zirconia lacks thermal conductivity.
As zirconia crowns and bridges are very resistant and aesthetic, they may be used both for frontal and side teeth.