Clinical appearance of caries: class 3 Flashcards
If you have to probe a caries, at what degree do you use the explorer relative to the caries?
20-40 degree angle
For active, cavitated lesions, what are the surface characteristics?
The cavity has exposed dentin and feels soft or leathery while probing
For inactive, cavitated lesions, what are the surface characteristics?
The cavity also has exposed dentin (like the active lesions) but the caries is hard with probing due to remineralization
What is the color for cavitated lesions?
Yellowish to brownish-black
What are the demarcation characteristics of active, cavitated lesions?
Sharply demarcated
What are the demarcations characteristics for inactive, cavitated lesions?
There are no sharp demarcations for the lesion margins and they blend into the adjacent normal surfaces
What are the surface characteristics for active, non-cavitated lesions? How do they feel on probing?
“Chalky”/dull, and they feel rough with gentle probing
What are the surface characteristics of inactive, non-cavitated lesions? What does it feel like with probing?
Glossy, feels smooth on probing
What is the color for active, non-cavitated lesions?
Whitish to light brown
What is the color for inactive, non-cavitated lesions?
Whitish to brown/black
What are the demarcation characteristics for active, non-cavitated lesions? What do the characteristics correspond to?
They are most often sharply demarcated and correspond to plaque-retention sites
What are the demarcation characteristics of inactive, non-cavitated lesions?
Well-demarcated, or with diffuse borders
Is topical or systemic fluoride consumption more effective?
Topical
What impacts to the enamel does fluorosis cause?
Hypo-mineralization and disruption
How are teeth discolored from fluorosis?
Brown
What are the main components of hydroxyapatite?
Calcium and phosphate
What two minerals come out of the tooth during demineralization?
Calcium and phosphate
In what year was there professional acceptance of fluoride sealants?
1972
What year was the bitewing XR invented?
1925
What are three reasons for not directly probing a caries with a sharp explorer?
Can worsen the caries, could transmit the caries between teeth, sensitivity of diagnosing caries with the probe is not 100%
Who determined that probing was dangerous to teeth?
Ekstrand
What is the feel of the base of the enamel when it is carious?
Soft
What two types of caries are difficult to diagnose?
Incipient caries (normal surface texture, can’t detect by tactile probing) and caries at the Dentino-enamel junction (DEJ)
What intervention is needed for arrested caries?
Wait and evaluate
