Question 261 · LDEK · Non-carious lesions of dental hard tissues
Which of the following factors are responsible for the abrasive formation of cavities?
1) endogenous acid activity;
2) exogenous acid activity;
3) overuse of toothpicks for cleaning interdental spaces;
4) holding a pipe between the teeth;
5) eccentric occlusal forces that cause tooth deflection.
The correct answer is:
2) exogenous acid activity;
3) overuse of toothpicks for cleaning interdental spaces;
4) holding a pipe between the teeth;
5) eccentric occlusal forces that cause tooth deflection.
The correct answer is:
- A. 1,2.
- B. 1,4.
- C. 2,5.
- D. 3,4.
- E. 3,5.
Hint
Abrasion is mechanical wear caused by foreign objects, not chemical or flexural damage.
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