Impacted

A tooth becomes impacted when there is a lack of space in the dental arch and its growth and eruption are prevented by overlying gum, bone or another tooth. A tooth may be partially impacted, which means a portion of it has broken through the gum, or totally impacted and unable to break through the gum at all.

Infection	Damage	Cyst

How Serious is an Impacted Tooth?

Impacted and partially impacted teeth can be painful and lead to infection. They may also crowd or damage adjacent teeth or roots. More serious problems may occur if the sac surrounding the impacted tooth becomes filled with fluid and enlarges to form a cyst. As the cyst grows it may hollow out the jaw and permanently damage adjacent teeth, the surrounding bone and nerves. Rarely, if a cyst is not treated, a tumor may develop from its walls and a more serious surgical procedure may be required to remove it. Complications may arise from partially impacted teeth and totally impacted teeth.

Reprinted with permission from American Association of Oral and Maxillofacial Surgeons.

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