Chapter 08: Nonneoplastic Diseases of Bone Ibsen: Oral Pathology for the Dental Hygienist, 7th Edition MULTIPLE CHOICE 1. Which statement is true of periapical cemento-osseous dysplasia? a. It is a neoplasm. b. The lesion is painful and occurs most often in the posterior maxilla. c. Teeth in the area are usually not vital. d. Older lesions are primarily radiopaque. ANS: D
Early lesions of periapical cemento-osseous dysplasia are radiolucent, whereas older lesions become more radiopaque. Periapical cemento-osseous dysplasia does not represent a neoplasm. The periapical cemento-osseous dysplasia lesion is asymptomatic and is discovered on routine radiographic examination. It occurs most commonly in the anterior mandible of patients older than 30 years of age. Teeth in the area affected by periapical cemento-osseous dysplasia are vital unless they are coincidentally carious or have been traumatized. REF: Periapical Cemento-Osseous Dysplasia, pages 259-260
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2. Which type of lesions typically arises in the posterior mandible and appears as an isolated,
well-delineated radiolucent-to-radiopaque lesion that is less than 1.5 cm in size? a. Periapical cemento-osseous dysplasia b. Focal cemento-osseous dysplasia c. Florid cemento-osseous dysplasia d. Monostotic fibrous dysplasia ANS: B
Focal cemento-osseous dysplasia typically arises in the posterior mandible and appears as an isolated, well-delineated radiolucent-to-radiopaque lesion that is less than 1.5 cm in size. Periapical cemento-osseous dysplasia occurs most commonly in the anterior mandible. Florid cemento-osseous dysplasia typically affects more than one quadrant of the maxilla and mandible, often in the posterior area. Monostotic fibrous dysplasia commonly affects the mandible or maxilla, and the maxilla is more frequently involved than the mandible. REF: Focal Cemento-Osseous Dysplasia, page 260
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3. Surgical treatment would most likely be recommended for a patient with ________ dysplasia. a. periapical cemento-osseous b. focal cemento-osseous c. florid cemento-osseous d. fibrous ANS: D
