Dental crowns is used to hold together parts of a broken tooth or to prevent a weak tooth from breaking down. It is also used to restore the shape and size of a broken down or worn out tooth. There are many types of crowns. Crowns are normally done on tooth with decay and cannot be restored by fillings. Small defects can be restored with fillings. When the decay or fracture involving the major cusps are very large a crown is needed since filling will not with stand the chewing force.
Porcelain fused to Metal crowns (PFM crowns)
These type of crowns have porcelain over metal crowns to provide tooth color and shade as per patient’s preference. Also it is used to match the color and shade of adjacent tooth. This will make the tooth look like normal tooth and is ideal for both anterior and posterior teeth.
Cast Metal Crowns
Full cast metal crowns are normally made for posterior teeth. Metal crowns are generally made of gold alloy, palladium or other base metals like nickel or chromium. Metal crowns need less tooth structure to be removed and usually recommended on second molars or when patient has a habit of Bruxism.
Stainless Steel Crowns
For children with primary tooth with extensive decay, stainless steel crowns are ideal to protect it till it falls off and give way for permanent teeth. These crowns can be placed in one visit and is cost effective compared to other types of crown. Stainless steel crowns are used for molars and metal crown with porcelain facing are used for the front teeth. Kids will lose their baby teeth mostly by the age of 12.
Ceramic or Porcelain Crowns
Crowns may also be made of all ceramic or all porcelain material. All-Ceramic crowns may be ideal for front teeth and may be made to match natural tooth color.