They are the last teeth to come in and the least ones needed for good oral health. Most often, they are impacted, or trapped in the jawbone and gums, usually because there is not enough room for them in your mouth.
Wisdom teeth cause more problems than any other tooth in the mouth.
They will either partially break the gum tissue and grow in crooked or remain underneath the gum. In nine out of ten people, at least one tooth remains underneath the gum - referred to as an impacted tooth , causing symptoms of future problems of varying degrees. Left untreated, impacted wisdom teeth can cause serious dental problems such as cysts or tumors. Basically, teeth develop in sacs resting deep in the bone. The sac disappears when the tooth comes through the jaw normally.