Dentinogenesis imperfecta with dens in dente.
An uncommon case of dentinogenesis imperfecta with dens in dente was studied by light microscopy, microradiography, and electron-microprobe analysis. Numerous canals and cellular inclusions were found in the coronal portion of the dentin where the tubules were sparse and irregularly distributed. In the radicular portion of the molar, large canals ran parallel to each other down to the apical region. The cementum was thinner and the Tomes granular layer greater in amount than usual. A dens in dente occurred in the radicular portion of the molar. It was located in a cavity and consisted of a mineralized cap of enamel, a spherical dentinal mass, and cellular cementum, located outside the cavity and in the "cervical" portion of the dens in dente.
D000293:Adolescent; D003719:Dens in Dente / Q000150:complications / Q000473:pathology*; D003811:Dentinogenesis Imperfecta / Q000150:complications / Q000473:pathology*; D004577:Electron Probe Microanalysis; D005260:Female; D006801:Humans; D008852:Microradiography; D014071:Tooth Abnormalities / Q000473:pathology*