Question 109 (part 2) · LDEK · Etiology and pathogenesis of caries
Choose true statements concerning the dental pellicle:
1) rate of formation is dependent on saliva composition;
2) thickness of the film is the same on all tooth surfaces;
3) it acts as diffuse membrane;
4) it protects the teeth from abrasion, erosion and attrition;
5) it is formed around 24 hours after teeth brushing.
Correct answer is:
2) thickness of the film is the same on all tooth surfaces;
3) it acts as diffuse membrane;
4) it protects the teeth from abrasion, erosion and attrition;
5) it is formed around 24 hours after teeth brushing.
Correct answer is:
- A. all of the above-mentioned.
- B. 1,3,4.
- C. 2,3,5.
- D. 2,4.
- E. 1,3,4,5.
Hint
The pellicle forms within minutes on a cleaned tooth from adsorbed salivary proteins, and its thickness differs between sites.
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