title: An ultrastructural study of the calcifications in calcifying odontogenic cysts and odontomas.
abstract: The calcifications associated with the epithelium of the calcifying odontogenic cyst and odontoma were studied ultrastructurally and found to be of three types: (1) spherical calcifications which form on ghost cells and which therefore are dystrophic, (2) spherical calcifications which appear to be dysplastic enamel, and (3) irregularly shaped, diffuse calcifications which form on a collagenous matrix and appear to by dysplastic dentin or cementum.
mesh_terms: D002114:Calcinosis / Q000473:pathology; D002462:Cell Membrane / Q000648:ultrastructure; D003238:Connective Tissue / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D004848:Epithelium / Q000648:ultrastructure; D006801:Humans; D009807:Odontogenic Cysts / Q000648:ultrastructure*; D009808:Odontogenic Tumors / Q000648:ultrastructure*; D009810:Odontoma / Q000648:ultrastructure*