Question 108 · LDEK · Cast partial dentures
Which of the following elements are direct retainers in cast clasp-retained removable partial dentures?
1) clasps;
2) locks;
3) attachments;
4) milled guide plane;
5) interlocks;
6) occlusal rests;
7) splint bars;
8) telescopic crowns;
9) dental implants.
The correct answer is:
2) locks;
3) attachments;
4) milled guide plane;
5) interlocks;
6) occlusal rests;
7) splint bars;
8) telescopic crowns;
9) dental implants.
The correct answer is:
- A. 1,2,3,4,5,8.
- B. 1,2,3,5,6,7.
- C. 1,3,4,5,7,9.
- D. 1,2,3,5,7,8.
- E. 1,3,4,6,7,9.
Hint
Direct retainers resist displacement of the denture away from the tissues — separate them from support elements and from abutments.
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