Saturday, November 28, 2009

Dental Crowns


W

hat is Crown?
A crown completely covers a weak tooth above the gum line and protects it. Crowns are made of metal or porcelain, or porcelain with metal inside for strength.



What are the benefits?
A crown is strong and can look and feel exactly like a natural tooth. The colour and shape can be matched to your own teeth.
Depending on the strength of the tooth underneath, a crown can last for many years if you look after your mouth and teeth and the crown is not accidentally damaged.
Crowns can also improve the appearance of misshapen or discoloured teeth.
What dentist do?
  1. If your tooth is vital (not dead/not RCT treated) then your dentist will give you anaesthesia to releiser any kind of  pain and sensitivity while tooth preparation.
  2. Then your dentist will cut your tooth which is also known as tooth preparation. He will reduce height, breadth of your existing tooth so that a crown can be placed over it.
  3. Then he will make an impression of the reduced tooth and send that to the lab to make a crown. Then he will note the shade  (colour) of your tooth.
  4. Then your dentist will fit a temporary crown over the tooth so that you'll not feel any sensation till the permanent crown is fitted on to the tooth.
  5. Then you will be recalled for second visit after permanent crown is ready.Then your dentist will remove the temporary crown and place the permanent crown and fit with the help of a special kind of cement which binds the tooth of the crown.
What is difference between temporary crown and permanent crown?
Temporary crown is made by a material which can not be used for a long time as it can not bear masticatory forces. It is normally made of acrylic material and can be prepared in a clinic. The main motive of this crown is to protect your reduced tooth by external environment as stimuli, hot and cold, pain, forces, bacteria etc.
While permanent crown is made up of porcelain or metal which has high strength and can be used for a long time. It has to be made in the lab. So can not be delivered immediately.
What happens if any permanent crown falls off?
It is not so natural that once fitted, it will not come out. If so there is nothing to worry. Visit then dentist immediately along with the crown. Dentist will see the coordination of your tooth and crown and place it back in place with not much effort. 
 

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