Wisdom Tooth Removal Wisdom tooth or the third molar complains are very common among the people above the age of 18 years. Wisdom tooth is the last tooth to erupt in our mouth and so because of the inadequate space, it may present problems to the patients. It is called an impacted third molar. The most common complains are Severe pain in the tooth and surrounding areas like ear, neck and head. Mouth opening is reduced(TRISMUS). Swelling in the third molar region which can also be visible on outside of the face.