Every patient is unique, but in general, wisdom teeth may need to be removed when there is evidence of changes in the mouth such as: pain, infection, cysts, tumors, damage to neighboring teeth, gum disease, tooth decay (all depending on the possibility of the specific tooth's restoration).
Incoming wisdom teeth can lead to problems if there isn’t enough space for them to surface or they come through in the wrong position. If your oral professional says your wisdom teeth are impacted, he or she means they are trapped in your jaw or under your gums. That gives cavity-causing bacteria a place to grow.
As your wisdom teeth make their way through your gums, your dentist will be monitoring your mouth for signs of the following:
Wisdom teeth that haven’t come in properly, which can make it difficult to floss between the wisdom teeth and the molars next to them.
Wisdom teeth that have partially come through can give bacteria a place to enter the gums and create a place for infection to occur. This may also lead to pain, swelling and stiffness in your jaw.
Wisdom teeth that don’t have room to come through are thought by some to crowd or damage neighboring teeth.
A wisdom tooth that is impacted can form a cyst on or near the impacted tooth. This could damage the roots of nearby teeth or destroy the bone that supports your teeth.
Wisdom teeth that are not removed should continue to be monitored because the potential for developing problems later on still exists. While not all patients need their wisdom tooth removed, problems can develop if removal is not performed.