Question 24 · LDEK · Cast partial dentures
In restoring unbounded edentulous spaces:
1) it is advised to rest the denture using occlusal rests that should be placed between the first and the second or between the second and the third tooth from the edentulous space;
2) using single occlusal rests as indirect retainers is indicated;
3) close rigid rest of the free-end saddle should not be used.
The correct answer is:
2) using single occlusal rests as indirect retainers is indicated;
3) close rigid rest of the free-end saddle should not be used.
The correct answer is:
- A. only 1.
- B. only 2.
- C. 1,3.
- D. 2,3.
- E. all the above.
Hint
A free-end saddle sinks into compliant mucosa; consider how rest position and indirect retention protect the abutment from leverage.
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