Question 114 · LDEK · Complete dentures
In the case of severe atrophy of the edentulous mandibular alveolar ridge it is necessary to increase the denture base area by placing the denture borders further than the neutral zone. The lower denture base extension is possible in the following regions:
1) retromolar area;
2) buccal vestibule;
3) pterygo-mandibular plicae;
4) mylohyoid line;
5) oblique line.
The correct answer is:
2) buccal vestibule;
3) pterygo-mandibular plicae;
4) mylohyoid line;
5) oblique line.
The correct answer is:
- A. 1,2.
- B. 2,4.
- C. 1,3.
- D. 4,5.
- E. 1,5.
Hint
Look for areas where the tissues bear load and the border will not be lifted by muscles — buccally over cortical bone and lingually behind a bony ridge.
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