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caries (kar´ez)

1. Microbial destruction or necrosis of teeth. 2. Obsolete term for tuberculosis of bones or joints. [L. dry rot]
active c. microbial-induced lesions of teeth that are increasing in size.
arrested dental c. carious lesions that have become inactive and stopped progressing; they may exhibit changes in color and/or consistency.
buccal c. c. beginning with decay on the buccal surface of a tooth.
cemental c. c. of the cementum of a tooth.
compound c. 1. c. involving more than one surface of a tooth; 2. two or more carious lesions joined to form one cavity.
dental c. a localized, progressively destructive disease of the teeth which starts at the external surface (usually the enamel) with the apparent dissolution of the inorganic components by organic acids that are produced in immediate proximity to the tooth by the enzymatic action of masses of microorganisms (in the bacterial plaque) on carbohydrates; the initial demineralization is followed by an enzymatic destruction of the protein matrix with subsequent cavitation and direct bacterial invasion; in the dentin, demineralization of the walls of the tubules is followed by bacterial invasion and destruction of the organic matrix.saprodontia;
distal c. loss of structure on the tooth surface that is directed away from the median plane of the dental arch.
fissure c. c. beginning in a fissure on the occlusal surfaces of posterior teeth.
incipient c. beginning c. or decay.
interdental c. c. between the teeth.
mesial c. c. on the tooth surface that is directed toward the median plane of the dental arch.
nursing bottle c. rampant c. of the primary dentition associated with the habitual use, after age 1, of a baby bottle as an aid for bottle syndrome;
occlusal c. c. starting from the occlusal surface of a tooth.
pit c. a carious lesion, usually small, beginning in a pit on the labial, buccal, lingual, or occlusal surface of a tooth.
pit and fissure c. c. initiated in the areas where developmental pits and fissures are located on the tooth surface.
primary c. initial lesions produced by direct extension from an external surface.
proximal c. c. occurring in the proximal surface, either distal or mesial, of a tooth.
radiation c. c. of the cervical regions of the teeth, incisal edges, and cusp tips secondary to xerostomia induced by radiation therapy to the head and neck.
recurrent c. c. recurring in an area due to inadequate removal of the initial decay, usually beneath a restoration or new decay at a site where caries has previously occurred.
root c. c. of the root surface of a tooth, usually appearing as a broad shallow defect in the area of the cemento-enamel junction.
secondary c. c. of enamel beginning at the dento-enamel junction due to a rapid lateral spread of decay from the original decay.
senile dental c. c. occurring in old age, usually interproximally and in the cementum.
smooth surface c. c. initiated on the smooth surfaces of teeth.


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