You're enjoying your favorite meal when you suddenly feel a dull ache at the very back of your mouth. At first, it's easy to ignore. But as the discomfort returns, you begin to wonder, "Is this my wisdom tooth? Do I really need to have it removed?"

It's one of the most common questions dentists hear.

Wisdom teeth, also called third molars, usually emerge between the ages of 17 and 25. While some people never experience any problems, others develop pain, swelling, or infections because there isn't enough room in the jaw. The good news is that not every wisdom tooth needs to be removed—it depends on its position and overall oral health.