Most people expect their wisdom teeth to emerge at some point during the late teens and early adult years. But while many people have one to four wisdom teeth, some people don't have any at all. Wisdom teeth are the third set of molars in the back of your mouth.

Is it possible for wisdom teeth to never come in?

If your third molars haven't appeared by your early 20s, they could come in later, or they may never appear at all. But a third, more likely possibility is that your wisdom teeth are impacted. In other words, your jaw doesn't have enough room for them to erupt, so the teeth become trapped below the gumline.

Do wisdom teeth have to come through?

According to the American Dental Association, wisdom teeth removal may be necessary if you experience changes in the area of those teeth, such as: Pain. Repeated infection of soft tissue behind the lower last tooth.