Definition Wisdom teeth are the third and last molars on each side of the upper and lower jaws. They are also the final teeth to erupt; they usually appear when a person is in their late teens or early twenties. Wisdom teeth that only partially emerge or come in crooked can also lead to painful crowding and disease. Wisdom tooth extraction is a surgical procedure to remove one or more wisdom teeth - the four permanent adult teeth located at the back corners of your mouth on the top and bottom. If a wisdom tooth doesn't have room to grow (impacted wisdom tooth), resulting in pain, infection or other dental problems, you'll likely need to have it pulled. Wisdom tooth extraction \is usually by an oral surgeon. Some dentists and oral surgeons recommend wisdom tooth extraction even if impacted teeth aren't causing problems, as a preventive measure against potential future problems.