When a tooth doesn’t fully erupt into the mouth, it is usually impacted and unable to break completely through the gums because there isn’t enough room.

An impacted wisdom tooth can damage neighboring teeth or lead to infection. Because these areas of the mouth are difficult to clean, a wisdom tooth can develop a cavity or collect bacteria leading to gum disease. Oral bacteria can travel through your bloodstream and potentially lead to infections and illnesses affecting your heart and other organs. In some cases, a cyst or tumor can form around the impacted tooth, which can lead to more serious problems, including damage to adjacent teeth or other surrounding structures.

Generally, a wisdom tooth should be removed if it presents with:

Dental pain

Poor oral hygiene

Infection

Periodontal (gum) disease

Cavities

Cysts, tumors or other pathology

Damage to neighboring teeth