The old saying, “If it ain't broke, don't fix it,” doesn't really apply when discussing your wisdom teeth. It's great if they are not bothering you, but don't wait for problems to develop before you take action. This may seem counter-intuitive, but you should know that the best time to have your wisdom teeth removed  is when they are not causing problems.
Why do wisdom teeth cause problems?
Wisdom teeth are so-called because they appear at ages 17 to 25, the age of supposedly attaining wisdom. They are also known as third molars and are farthest back in your jaws. For some people they come through the gum-line only partially, or they may not erupt into the mouth at all. Unerupted they have the potential to cause problems associated with the neighboring teeth and surrounding gums.
You may have heard of “impacted” wisdom teeth. This means that they are impacted or forced against neighboring structures, teeth or bone that prevent them from coming into the mouth in correct biting position. Since they are your last teeth to come in, space for them may be severely limited. They may push into the teeth that are already in place, becoming stuck as they try to erupt. When wisdom teeth are trapped like this below the gum line and are pushing against neighboring teeth, these molars can cause problems such as infections, cysts, or gum disease.
To learn more, read Wisdom Teeth .