Third molars, more commonly know as wisdom teeth, are generally the last teeth to develop and appear in your mouth. They typically appear between the ages of 17 and 25, a time in life associated with the onset of maturity and the "Age of Wisdom."
If your wisdom teeth have grown in completely and are functional, painless and disease-free, there may be no need to extract them. Just like your other teeth, however, they require regular cleanings, check-ups and x-rays to monitor for any changes.
If your wisdom teeth have not grown in completely, your dentist may refer you to an oral & maxillofacial surgeon for wisdom teeth removal.