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Chapter 23 Abnormalities

Ankylosis Cementum is fused to the bone by the mineralization and hardening of the PDL fibers.
Anodontia Missing teeth. Most common is 3rd, premolars, and maxillary laterals.
Sumpernumerary Extra teeth.
Mesiodens Extra tooth between 8&9.
Dens in Dente Enamel invaginate within the tooth.
Hypercementosis Enlargement of the cementum, usually at the apex of the tooth.
Gemination When one developing tooth has split off into two distinct teeth that remain attached to each other and develop together.
Fusion Where two developing teeth merge into one tooth.
Abscess Chronic or acute located at the apex of the tooth usually. Appear radiolucent.
Exostosis A boney growth projecting outward from the surface of a bone or tooth. Example: palatal and mandibular tori.
Cysts a pathologic cavity lined by the epithelium that also has a fibrous capsule consisting of compressed connective tissue.
Dentigerous Cyst Cyst derived from the enamel organ always associated with the crown. If the tooth completes and erupts the cyst is usually destroyed naturally.
Follicular Cyst A cyst associated with enamel follicles.
Globulomaxillray Cyst Arises between the maxillary lateral and canine.
Radicular Cyst A cyst at the apex of a tooth with a distinct wall or capsule. Radiopaque line
Residual Cyst Left over cystic tissue.
Incisive Canal Cyst Originates in the incisive canal.
Condensing Osteitis Describes the formation of compact sclerotic bone due to inflammation.
Taurodontia Large pulp chamber short roots
Dentinogenesis Imperfecta Small underdeveloped roots, no pulp chambers
Amelogenesis Imperfecta Teeth with little or no enamel.
Are benign tumors cancerous? No.
Examples of benign tumors? Exostosis, osteoma, giant cell tumor or granuloma.
Odontoma Tumor? A tumor of odontogenic origin in which enamel and dentin are formed.
Giant Cell Tumor Radiolucent area of different sizes smooth borders usually anterior teeth.
Cementoma A tumor derived from the PDL of a fully erupted tooth. Usually mandibular incisors. No treatment is necessary.
Sialolith Tumor Calcified stone in the salivary gland.
Created by: Strobelight95