Erupted odontomas occur very rarely in both the primary and permanent dentitions. The present case report discusses an unusual erupted odontome associated with a primary first mandibular molar. A 7-year-old female patient with an erupted odontome in the oral cavity was reported. The surgical extraction of odontome was performed under local anesthesia to allow eruption of underlying premolar tooth. After 4 years of follow-up, the first premolar had erupted with an unusual occlusal morphology, similar to that of a primary first molar. Orthopantomogram revealed no supplemental/supernumerary teeth in the vicinity of the erupted tooth. Early evaluation, precise diagnosis of odontogenic lesions interfering with erupting teeth, especially in the first decade of life is essential for prevention of malocclusion in young children. Erupted permanent successor should be differentiated from a primary first molar to avoid unnecessary extraction.
Keywords: Odontogenesis; odontomas; pediatric oral pathology.