The treatment of root canal belongs to the special branch of dentistry called Endodontics. There are many expert dentists in London and UK who are providing the treatment of root canal along with other dental treatments.
However, when a dentist calls himself Endodontist, it means that he is a specialist in its treatment. These are the dentists with special post-graduate training in this field of Endodontics.
A patient needs to take the root canal treatment when the blood or nerve supply of the tooth known as the pulp is infected through decay or injury.
If the pulp becomes infected, the infection may spread through the root canal system of the tooth. This may eventually lead to an abscess.
If root canal treatment is not carried out, the infection will spread and the tooth may need to be taken out.
A dentist then removes inflamed or infected pulp through an access cavity made in the crown of the tooth. The inside of the root canal is then carefully cleaned and shaped before being filled to seal the space.
The access cavity made in the tooth is then restored and the tooth continues to function like any other tooth. Now-a-days, root canal treatment can be executed in a single appointment ranging from 45-120 minutes.
However, this time duration depends on the number of root canals present. Sometimes, a crown or other restoration will be needed to protect and restore the damaged tooth to full function.
The success ratio of root canal treatment is very high, however if the decay again occurs, the treatment can be repeated.
In order to maintain the oral health after having the root canal treatment, root filled teeth should be treated just the same as any other tooth. You should clean your teeth at least once a day, preferably with a fluoride toothpaste.
Also, it would be desirable to reduce the intake of sugary snacks, and keep them only to mealtimes if possible. Also, regular visits to dentists are also desired.

