What Is an Extraction?
Extraction is removal of a tooth. For simple extractions, local anesthetic is used to numb the area. For more complex extractions such as wisdom teeth, the oral surgeon may use IV sedation.
What Would a Tooth Need to Be Extracted?
When keeping a tooth leads to more harm than good, the tooth should be extracted.

A tooth might be:
  • Decayed beyond repair,
  • Broken / cracked / fractured beyond repair,
  • Causing periodontal disease (gum infection),
  • Preventing the placement of a bridge or denture
  • and many more...

If a tooth has been diagnosed for extraction and is not removed, it often leads to spread of infection, disease, and degeneration of surrounding tissues.
What Happens After an Extraction?
Often times, immediately after an extraction, a temporary bridge is placed to fill in the space. The extraction site is allowed to heal for about 4 weeks after which a permanent bridge is constructed. Sometimes implants or dentures are also used to replace the missing tooth or teeth.