Caries Diagnosis Flashcards
What are the two classifications of caries?
D1 - clinically visible enamel lesions, intact surface
D3 - lesions extending into dentine, at or beyond ADJ
What is a D2 classification?
clinically detectable advanced enamel lesion (may be cavitated only through enamel)
How to check if a lesion is cavitated and what should not be used?
use a blunt probe, if it catches it may be cavity and if it runs over it is probably not
HOWEVER, do not used a sharp probe as you may create a cavity out of a caries lesion
What are the two classifications of caries activity?
active (demineralising)
inactive (remineralising)
If there are caries and the patient practises good oral hygiene, what is possible?
lesion may be arrested and remineralising can occur
What are the sites caries can occur on?
smooth surface
occlusal
root surface
approximal
What are the classifications of location?
primary - no restorations near caries
secondary - adjacent to a restoration
What are the 5 classifications helpful to diagnose caries?
Extent
Cavitation
Activity
Site
Location
What is the scoring system?
Surfaces - each surface is considered separately i.e caries present on mesio-occlusal surface
Tooth - worst surface dicates tooth code i.e caries on one surface = the tooth is decayed
What is reliability?
both accuracy and precision
What is accuracy?
does it measure what is claimed?
What is precision?
consistency of measurement
What are the two parts of accuracy in caries diagnosis?
sensitivity
specificity
What is sensitivity?
% of disease found correctly - how much you are right at estimating disease
What is specificity?
% of health found correctly - how you are right at estimating health
