Question 415 · LDEK · Etiology and pathogenesis of caries
Indicate the true statements concerning secondary caries:
1) it is primary caries located at the margin of a restoration;
2) it is caused by metabolic activity in the biofilm developing on the tooth surface;
3) it can’t be arrested by regular removal of the biofilm or fluoride topical application;
4) it develops due to the remains of demineralized dentin on the floor of the cavity.
The correct answer is:
2) it is caused by metabolic activity in the biofilm developing on the tooth surface;
3) it can’t be arrested by regular removal of the biofilm or fluoride topical application;
4) it develops due to the remains of demineralized dentin on the floor of the cavity.
The correct answer is:
- A. 1,2.
- B. 1,3.
- C. 3,4.
- D. 2,4.
- E. 2,3.
Hint
Distinguish a new lesion forming at a restoration margin from demineralized dentin left behind under a filling.
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