Sometimes, teeth just need to be removed. For example:
he removal of a tooth by a dentist or surgeon is called a tooth extraction.
The easiest extraction requires only a local anesthetic, and is accomplished by pulling out the tooth with a controlled force using proper instruments.
Sometimes, it is more difficult to extract a tooth, such as when it is not fully erupted. In those cases (not as common), full anesthesia, true surgery, and probably the services of an oral surgeon may be required.