ch 32 rad exam III interpretation of dental caries

localized destruction of teeth by microorganisms

normal mineralixed tooth structure

what is destroyed by caries?

latin for cariosus means?

a carous lesion or an area of tooth decay is often refered to as a

in dentistry cavity refers to?

To detect dental cares what exams are needed?

carious lesions appear radio... on a radiograph

the choice radiograph for caries detection

Caries are classified according to?

between two adjacent surfaces

caries found between two teeth

on a dental radiograph, these caries are seen at or just apical to the contact point.

interproximal caries can be classified according to

interproximal carious lesions can be classified as (4)

extends less than halfway through the thickness of enamel

means beginning to exist or appear

extends more than halfway though the thickness of enamel but does not involve the DEJ

extends to or through the DEJ and into dentin but does not extend through the dentin more than half the distance toward the pulp

extends through enamel, through dentin, adn mroe than half the distance toward the pulp

refers to the chewing surfaces fo the teeth

careis that involves the chewing surface of the posteriro teeth is termed

Why are occlusal caries difficult to see on a dental radiograph?

occlusal caries is not seen on the radiograph until there is involvement of the

Occlusal carious lesions can be calssified as (3)

cannot be seen on hte dental radiograph and must be detected clincally with an explorer

extends into dentin and appears as a very thin radiolucent line. The radiolucency is located under the enamel of the occlusal surface of the tooth. Little if any radiographic change is noted in the enamel

extends into dentin and appears as a large radiolucency. The radiolucency extends under teh enamel of the occlusal surface of the tooth. Apparent clincally and appears as a cavitation in a tooth

difficult to detect on a dental radiograph and are best detected clincally

caries that appear as small, circular radiolucent area

involves only the roots of teeth

the cementum and dentin located just below the cerviacl region or the tooth are involved. No involvemnet of enamel occurs. Bone loss and corresponding gingival recession precede the caries process and result in exposed root surfaces.

occures adjacent to a preexisting restoration

what causes recurrent caries (3)

occurs most often beneath the interproximal margins of a restoration on a radiograph

growing or spreading unchecked

advanced and severe caries that affects numerous teeth

typically seen in children with poor dietary habits or in adults with decreased salivary flow