Progressive Pre-Eruptive Coronal Resorption Associated With Enamel Degeneration: A Case Series.

The purpose of this article is to present three cases of a rare phenomenon called pre-eruptive coronal resorption (PCR), which occurs in teeth with enamel degeneration. In the first case, the enamel defects occurred due to ectodermal dysplasia, which represents the first documented case of a patient with ectodermal dysplasia who underwent PCR. In the other two cases, the enamel defects occurred due to amelogenesis imperfecta. PCR typically develops asymptomatically; therefore, it is usually incidentally identified through radiological findings, as it presents diffuse degeneration originating externally from the enamel. The precise etiology and pathogenesis of PCRs have yet to be fully elucidated. However, as PCR can spread throughout the dentin and progress to the pulp, early diagnosis is crucial for preserving the affected teeth. Therefore, pediatric dentists should be aware of this pathology.