Radiographic Interpretation of Caries Flashcards
Plaque consists of what percentage of bacteria?
60-70%
What are the 3 requirements for the formation of caries?
- Susceptible hose
- Microorganisms
- Appropriate substrate
What are the peak incidences of caries?
6-8 years
11-19 years
56-65 years
What 3 things have caused a decline in caries incidence?
- Fluoridated water
- Fluoridated dentrifices
- Improved oral hygiene and oral health care
What does a full mouth radiographic survey consist of?
14 periapicals and 4 bitewings
These caries proceed faster in deciduous teeth than in permanent:
Acute caries
These caries have a slower progression, larger surface lesion, usually adults:
Chronic Caries
What do arrested caries feel and look like?
Polished and black.
Feels leathery when exploring
Originates on virgin surface:
Primary
In immediate vicinity of restoration:
Secondary
Describe incipient proximal caries:
- early stage
- less than half way through enamel
- white spot
- cone or v shape with broad base at surface of enamel.
Describe moderate proximal caries:
- caries extending more than half-way through the enamel but not involving the DEJ.
Describe advanced proximal caries:
- caries at or through the DEJ that extend no more than half way through the dentin to the pulp.
- dentinal tubules act as a tract for microorganisms.
- 2nd radiolucent triangle in dentin with base at DEJ.
Describe severe proximal caries:
Caries of enamel and dentin extending more than half-way through the dentin towards the pulp.
Can occlusal caries be detected radiographically?
Only if it has entered into the dentin.
