According to Plaza Drive Dentistry, the likelihood of saving a loose permanent tooth varies. A slightly loose tooth typically tightens up without any intervention. If an injury knocks a tooth very loose, a dentist must be consulted within 2 hours in order to have any chance of saving it.
Plaza Drive Dentistry explains that loose teeth are also a symptom of gum disease. The gums recede and do not hold teeth properly. Grinding teeth sometimes causes one or more teeth to become loose. This problem is usually treated by having the patient wear a mouth guard to protect teeth and prevent grinding.