What is an impacted wisdom tooth?

Wisdom teeth, or third molars, are the last teeth to develop and appear in your mouth. They come in between the ages of 17 and 25, a time of life that has been called the “Age of Wisdom.”

What is an Impacted Tooth?When a tooth is unable to fully enter the mouth, it is said to be “impacted.” In general, impacted teeth are unable to break through the gums because there is not enough room. Nine out of ten people have at least one impacted wisdom tooth.How serious is an impacted wisdom tooth?If left in the mouth, impacted wisdom teeth may damage neighbouring teeth, or become infected.

Because the third molar area of the mouth is difficult to clean, it is a site that invites the bacteria that leads to gum disease. Furthermore oral bacteria may travel from your mouth through the bloodstream, where it may lead to possible systemic infections and illnesses that affect the heart, kidneys and other organs.

Research has shown that once periodontal disease is established in the third molar areas, the problem is persistent and progressive, but may improve following extraction of the teeth.

In some cases a fluid-filled cyst or tumor may form around the base of the untreated wisdom tooth. As the cyst grows it may lead to more serious problems as it hollows out the jaw and damages surrounding nerves, teeth and other structures.

Must the tooth come out if it hasn’t caused any problems yet?

Many people believe that as long as they are not in pain, they do not have to worry about their wisdom teeth. However, pain free does not mean disease or problem free. In fact, wisdom teeth that come in normally may still be prone to disease, according to a study by the American Association of Oral and Maxillofacial Surgeons and the Oral and Maxillofacial Surgery Foundation. AAOMS strongly recommends that third molars be evaluated by an oral and maxillofacial surgeon by the time a patient is a young adult in order to assess the presence of third molars, disease status, and to suggest management options ranging from removal to a monitored retention plan to ensure optimal patient-specific outcomes.

In general, dental and medical professionals agree that wisdom teeth should be removed in the following instances:

  • infections and/or periodontal disease;
  • cavities that cannot be restored;
  • pathologies such as cysts, and tumors, and damage to neighbouring teeth.

Wisdom teeth that are completely erupted and functional, painless, cavity-free, in a hygienic environment with healthy gum tissue, and are disease-free may not require extraction. They do, however, require regular, professional cleaning, annual check-ups and periodic radiographs to monitor for any changes.

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