Chapter 106: Pathology of the Hard Tissues of the Jaws Paul C. Edwards

Figure 1 Figure 1 Patient with rampant caries. © 2008 American Society for Bone and Mineral Research From the Primer on the Metabolic Bone Diseases and Disorders of Mineral Metabolism, 7 th Edition.

Figure 2 Figure 2 The dentist’s armamentarium of radiographic techniques includes intraoral dental radiographs supplemented with extraoral panoramic imaging. (A) Intraoral radiograph (periapical film) showing the outline of the mandibular anterior teeth and surrounding alveolar bone. A unilocular radiolucent lesion with a well-defined periphery is evident in the center of the radiograph. The left lateral incisor (arrow) was nonvital. The differential diagnosis was periapical cyst vs. granuloma. (B) Extraoral panoramic radiography provides a complete view of the maxillary and mandibular bones and neighboring structures. This radiographic technique is widely used as a screening tool. This panoramic radiograph, taken on an 18-yr- old patient, shows the presence of unerupted third molars (wisdom teeth). A small well-defined radiolucent area is evident around the crown of the maxillary left third molar (arrow). Because the pericoronal width is <4 mm, this likely represents a normal dental follicle surrounding the developing tooth. © 2008 American Society for Bone and Mineral Research From the Primer on the Metabolic Bone Diseases and Disorders of Mineral Metabolism, 7 th Edition.

Figure 3 Figure 3 Cadaver mandible with loss of buccal cortical plate. The crowns of the mandibular incisors are fractured, resulting in pulpal necrosis and the subsequent development of a periapical granuloma or cyst © 2008 American Society for Bone and Mineral Research From the Primer on the Metabolic Bone Diseases and Disorders of Mineral Metabolism, 7 th Edition.

Figure 4 Figure 4 H&E-stained section from an odontogenic keratocyst (keratocystic odontogenic tumor) shows a cyst lining composed of epithelial cells maturing to a parakeratotic surface. Keratin is evident in the lumen. The basal epithelial layer (adjacent to the basement membrane that separates the epithelium from the underlying connective tissue) is palisaded. © 2008 American Society for Bone and Mineral Research From the Primer on the Metabolic Bone Diseases and Disorders of Mineral Metabolism, 7 th Edition.