Caries Radiology Flashcards
Steps to Caries
- Initial subsurface demineralization (Reversible)
- Extension of demineralized zone to dentin
- Collapse of surface layer to form cavity (irreversible)
- Extension of caries lesion to dentin
- Extension of caries into pulp (possible formation of apical abscess
Sensitivity of a test
How many cases of a disease a particular test can find
Specificity
How accurately it diagnoses a particular dz without giving false-positive
Enamel Caries
Clinically white or stained.
Follows direction of enamel rods.
Dentinal Caries
Spreads along DEJ rapidly to pulp.
Destruction of tubules
Cemental Caries
“Root Caries”
Ill defined saucer-like craters
Determined by recession of gingiva
Arrested Caries
Static
On occlusal/smooth surface.
Black hard dentin - usually restored
Interproximal Radiographic Incipient Lesion
Extends less than halfway through thickness of enamel
Enamel only
Interproximal Radiographic Moderate Lesion
Greater than halfway through the thickness of enamel but doesn’t involve DEJ.
Enamel only
Interproximal Radiographic Advanced lesion
Extends to the DEJ or through and into dentin and hasnt gone more than halfway of dentin to pulp
Interproximal Radiographic Severe lesion
Extends to more than halfway of dentin to pulp
Occlusal Radiographic Incipient Lesion
Can’t be seen in radiograph, need clinical detection
Occlusal Radiographic Moderate Lesion
Caries extends into dentin = very thin radiolucent line under enamel.
Little to no change in enamel
Occlusal Radiographic Severe lesion
Caries extends into dentin and seen as large radiolucency
Apparent clinically as hole in tooth
Cervical Burnout
Between CEJ and alveolar crest w/ diffuse radiolucency.
Ill-defined borders, presence of edge of root
