You may have heard the term “impacted” used to describe a tooth and wonder what it means. In orthodontic or dental terms “impacted” means that a tooth either has not come in “erupted” when expected or a tooth that cannot erupt because it does not have room or may be coming in the wrong direction or position. What causes an impacted tooth may not be known, for some people it just happens. Genetics can play a role so if a parent had an impacted tooth, their child may experience the same problem. We often hear about older teenagers or adults having impacted wisdom teeth. But other teeth can be impacted, too.