What if they have grown in and don’t hurt?

If this is the case, the decision is up to you. Wisdom teeth that cause minimal crowding and don’t hurt are fine to keep, but a lot of dentists will recommend that they be removed. Why? They are very susceptible to cavities and are not easy to clean. If your wisdom teeth have cavities and you cannot clean them due to their location, filling the cavities is unwise because you’ll continue to develop more cavities. The easiest way to avoid this problem is to remove the wisdom teeth altogether.