Two cases of ectodermal dysplasia diagnosed based on congenital absence of multiple teeth

Background: Ectodermal dysplasia (ED) is a hereditary disease that affects tissues of the ectoderm system. Some patients reach adulthood before being diagnosed with ED, with dental manifestations sometimes leading to diagnosis.Case presentation: Two child patients were diagnosed with ED based on dental findings. In one case, partial anodontia of primary and permanent teeth was observed. In the other, the number of primary teeth was normal, while there were only five permanent teeth present.Conclusion: For some cases of ED not yet diagnosed, dental findings can lead to such a determination.(c) 2023 Japanese Society of Pediatric Dentistry. Published by Elsevier Ltd. All rights reserved.