A crown is the dental restoration for the tooth/teeth which are damaged, decayed.

Crowns are placed on teeth after they have undergone root canal treatment to strengthen them. Crowns are also placed on teeth which have very large cavities. Crowns and most bridges are fixed prosthetic devices used for your dental restoration. Both crowns and bridges are cemented onto existing teeth which can be removed only by a dentist. It is not like other removable devices such as dentures, which can be taken out and clean daily by you.

It matches the natural teeth so well both in looks and in function that it becomes a part of the mouth in totality. It is so comfortable that after a while the person forgets that he has a crowned tooth in his mouth. This is the best testimonial that can be given by any patient...

Why Is a Dental Crown Needed?

 


Need Crown





A dental crown may be needed in the following situations:
·      To protect a weak tooth (for instance, from decay) to prevent it from breaking or in order to hold together parts of a cracked tooth
·    To restore an already broken tooth or a tooth that has been severely worn down
·        To cover and support a tooth with a large filling when there isn't a lot of tooth left
·        To hold a dental bridge in place
·        To cover mis-shapened or severely discolored teeth

Types of Crowns 
There are broadly two types of Crowns: 
  Temporary Crowns – made at dental clinic easily, and it is made up of acrylic.
  Permanent Crownsmade at dental laboratory, and it is made up of all metal, porcelain-fused-to-metal or all ceramic.

Permanent crowns can be made from all metal, porcelain-fused-to-metal, all resin, or all ceramic.
Both esthetics (appearance) and function are considered when selecting the material most suitable for you.

Metal Crowns

Some of the metals used in crowns include gold alloy, other alloys like, palladium or a base-metal alloy (for example, nickel).  Metal crowns withstand biting and chewing forces well and with the long durability. Also, metal crowns rarely chip or break. However the metallic color is the main drawback. Metal crowns are a good choice for out-of-sight molars.   


Porcelain-fused-to-metal                                  
 Major advantage of dental crowns is the color similarity to your adjacent teeth (unlike the metallic crowns).  Next to all-ceramic crowns, porcelain-fused-to-metal crowns look most like normal teeth. However, sometimes the metal underlying the crown's porcelain can show through as a dark line, especially at the gum line and even more so if your gums recede. These crowns can be a good choice for front or back teeth.
All-ceramic or all-porcelain
Dental crowns offer the best natural color match than any other crown type and are suitable for people with metal allergies.  All-ceramic crowns are a good choice for front teeth

Other factors we consider include:
·     Esthetics - color match and appearance
·     Function - chewing and biting accuracy
·     Tissue compatibility- the contour of the prosthesis must allow
      thesurrounding tissue to conform to a natural, healthy position.