Wisdom tooth is the common name given to the third molar.
They erupt at the back of the mouth usually between the ages of 17 to 21. No, unless they are causing problems or look likely to cause you problems. Partial Eruption the third molar is the last tooth to erupt and frequently there is not enough room for it in the mouth. Often only part of it erupts, in which case it can act as a trap for food and plaque becoming the site of an infection. Impaction often there is so little room for a wisdom tooth, or it is at such an angle that it doesn't even emerge from the bone of your jaw.