Tooth Agenesis, also known as oligodontia, is related to tooth agenesis, selective, 1 and tooth agenesis, selective, 2. An important gene associated with Tooth Agenesis is PAX9 (Paired Box 9), and among its related pathways/superpathways are Signal Transduction and Pleural mesothelioma. The drugs Ibuprofen and Hydrocortisone have been mentioned in the context of this disorder. Affiliated tissues include bone and bone marrow, and related phenotypes are oligodontia and impaired mastication