Question 380 · LDEK · Non-carious lesions of dental hard tissues
Indicate the true statements on attrition:
1) concerns the pericervical area of the buccal surfaces of teeth;
2) concerns the proximal surfaces of teeth;
3) concerns the occlusal surfaces and incisal edges of teeth;
4) is the result of chewing and tooth-to-tooth contacts;
5) is the result of tooth-to-foreign body contacts.
The correct answer is:
2) concerns the proximal surfaces of teeth;
3) concerns the occlusal surfaces and incisal edges of teeth;
4) is the result of chewing and tooth-to-tooth contacts;
5) is the result of tooth-to-foreign body contacts.
The correct answer is:
- A. 1,2,4.
- B. 1,2,5.
- C. 1,3,4.
- D. 2,3,4.
- E. 2,3,5.
Hint
Attrition is wear by tooth-to-tooth contact, so consider which surfaces actually touch other teeth.
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