There are four wisdom teeth in adults. Wisdom tooth extraction will be done due to the placement of teeth.
Wisdom Tooth Extraction:
Wisdom teeth or third molars are the last permanent teeth to appear in the oral cavity. These usually erupt between the ages of 17 to 25 and are known to cause problems for many due to a lack of space in the jaw. If the tooth doesn't have room to grow (impacted wisdom tooth), it might result in pain, infection, or other dental problems, and you'll likely need to have it pulled.
To prevent potential problems, your dentist might recommend wisdom tooth extraction even if the impacted wisdom teeth aren't currently causing problems. Usually, the procedure is carried out under local anesthesia and if stitches are placed, the stitches will be taken out within a week.