There are many reasons why a tooth may need to be extracted. Most commonly, the cause is tooth decay or the fact that the tooth is so badly broken down that it cannot be repaired or restored. In this case it would need to be removed to prevent infection or pain.
Tooth loss can also often occur due to gum disease, so it is important to have your teeth cleaned regularly with the hygienist and to have a good oral hygiene routine at home in order to help prevent gum disease.
The tooth is removed under local anaesthetic and no discomfort is felt during the procedure; you will hear noise and feel pressure. For a few days after the extraction, the area may be a little tender while healing.
The wisdom tooth may sometimes need to be removed if there is limited space for it to erupt as it is situated at the back of the mouth.
A wisdom tooth may cause problems of tooth decay or infection in the adjoining teeth. It can be removed under local anaesthetic which will completely numb the gum and its surrounding tissues. You can expect to be numb for a couple of hours afterwards.