Flashcards in Introduction Deck (5)
Loading flashcards...
1
Q
stains can serve as a what for plaque attachment and are often an aesthetic concern to the patient.
A
nidus
2
Q
stains occurs in 3 ways
A
- stain directly on the tooth surface
- stain on plaque and calculus
- stain within the tooth surface
3
Q
list the classification of stains by location
A
- extrinsic stain
- —on outside of tooth/ can be removed on surface of enamel or exposed cementum or dentin; can be attached to acquired pellicle, plaque, calculus, or directly to tooth
- intrinsic stain
- —occurs within structure of tooth, cannot be removed; in surface of enamel or cementum or dentin
4
Q
described by source
A
- exogenous stain
- —develops or originates from sources outside the tooth; may be extrinsic or intrinsic, i.e., may or may not be able to remove it.
- endogenous stain
- –developes or originates from within the tooth; always intrinsic and cannot be removed:
1. tetracycline
2. trauma
3. pulpless tooth
5
Q
what classification by location and source cannot be:
A
cannot have endogenous extrinsic–originates inside, occurs outside