Caries Symposium 6 Flashcards
D1 caries diagnosis
All visually detectable lesions
D3 caries diagnosis
Lesions extending into dentine
How does D3 caries present clinically?
If caries is extending into dentine you get shadowing
Why should we never probe caries with a sharp probe?
As if there’s a micro-cavity and you push a great big probe in it the situation will be made worse
What should we use to probe caries? (2)
- Use a ball ended probe or a perio probe and you run it across the surface
- If there is a defect the probe will drop into it
What does active caries mean?
Demineralisation
What does arrested caries mean?
Remineralisation if strict OH advice followed
Caries diagnosis classification steps (5)
- Extent
- D1,D2,D3 - Cavitation
- Cavitated, not cavitated - Activity
- Active (demineralising)
- Arrested (remineralising) - Site
- Smooth surface
- Occlusal
- Approximal
- Root surface - Location
- Primary
- Secondary (adjacent to restoration)
Caries scoring system (2)
- Surfaces
- Each surface considered separately - Tooth
- Worst surface dictates tooth code
How is caries diagnostic accuracy achieved through reliability? (2)
ACCURACY
- Sensitivity
- % of disease found correctly - Specificity
- % of health found correctly (how many times do we find teeth with no decay)
PRECISION
- Consistency of measurement
How is the accuracy of caries diagnosis improved? (4)
- ICCMS
- Radiographs
- Magnification
- FOTI
Advantages of radiographs (2)
- Permanent record
2. Good for approximal areas
Disadvantages of radiographs (2)
- Ionising radiation
2. Not so good for occlusal caries as its difficult to see
Disadvantages of loupes (2)
- Field view gets much smaller
2. Takes time to get used to
Function of fire optic transillumination (FOTI)
Can measure resistance of capacity in a tooth
