Less frequently complete growth may not occur until 30 years. The most common symptom is pain when partially erupted wisdom teeth are attempting to grow. Food particles and bacteria can become trapped between the tooth and inflamed gums as well causing gum infections. Less commonly destructive cysts can form. Not all wisdom teeth cause problems, however.
Antibiotics work well for local infections.
However, if the underlying cause is not treated infections may be recurrent. The real problem is that the tooth can't fit in your mouth. This leaves an opening for bacteria to enter around the tooth and cause an infection. Pain, swelling, jaw stiffness and general illness can result. There is a chance that poorly aligned wisdom teeth will damage adjacent teeth.