In layman terms tooth crowns are nothing but a cover or artificial layer over the natural tooth to protect it or do some aesthetic and functional correction.Tooth crown have become the integral and most important part of modern day dentistry but it were not so advanced and good from the starting.
What are tooth crowns made of
There are many types of tooth crowns with huge differences in their material and properties. Some may look alike but properties of material is different.
Materials used
Metal Alloys- These are use to fabricate metal crowns and base of metal fused to ceramic crowns.
Porcelain- Is used to make Full ceramic and metal fused to ceramic crowns. Porcelain is nothing but high quality of heat treated ceramic which have greater strength. It's actually a vitrous ceramic based on silica matrix and potash feldspar.
Zirconium- Zirconia is a very hard substance which
can be used to make very durable crowns, plus it have high aesthetic value. Zirconium is used a zirconia oxide in dentistry which is reacted with yttrium oxide, which is called as YSZ- Yittria stabilized zirconia.
What are tooth crowns made of
There are many types of tooth crowns with huge differences in their material and properties. Some may look alike but properties of material is different.
Materials used
Metal Alloys- These are use to fabricate metal crowns and base of metal fused to ceramic crowns.
- Nobel metal alloys- Contains Gold, Copper, Silver, Palladium.
- Base metal alloys- Nickle based alloy, Cobalt based alloy. Titanium alloys, Aluminium and bronze alloys.
Composition- Potash feldspar, Silica, Koalin, Fluorspar, Boric oxide, Calcium oxide, Metallic pigments.
Zirconium- Zirconia is a very hard substance which can be used to make very durable crowns, plus it have high aesthetic value. Zirconium is used a zirconia oxide in dentistry which is reacted with yttrium oxide, which is called as YSZ- Yittria stabilized zirconia.
Gold- Pure gold and some form of gold alloys where used in past for fabrication of dental crowns but they have been outdated nowadays.