Five Years Follow-up of a Spontaneous Eruption of an Impacted Mandibular Premolar Associated with a Dentigerous Cyst Treated by Marsupialization.

Dentigerous cysts (DC) are developmental odontogenic cysts associated with impacted or partially erupted teeth; they can occur at any location of the jaw. Being generally asymptomatic, they are fortuitously discovered when radiographs are taken to investigate a tooth eruption failure. In this report, we present a case of a 10-year-old girl presented with the absence of the right second mandibular premolar and retention of the right second primary molar.