When should wisdom teeth be removed?
The following symptoms may indicate that the wisdom teeth have erupted and surfaced. and should be removed before they become impacted-meaning, the teeth have surfaced and have no room in the mouth to grow. However, each individual may experience symptons differently. Symptoms may include:
Infection in the mouth
Swelling of the gumline in the back of the mouth
many oral health specialists will recommend removal of the wisdom teeth, (when the roots are approximately formed, or three-fourths developed, usally in the adolescent years), as early removal will help to eliminate problems, such as an impacted tooth that destroys the second molar.
Source: Academy of General Dentistry