Odontomas are benign tumors of odontogenic origin consisting of enamel, dentin, cementum and pulpal tissue. They display slow growth and are asymptomatic. Usually, the patient is evaluated for tooth eruption disturbances, like this case, where two primary teeth are still present in an adult.

There are two types of odontomas: compound and complex. The compound is approximately twice as common as the complex. Both are mixed odontogenic tumors since they consist of epithelial and mesenchymal tissue, which differentiate into enamel, dentin and pulp.