Question 179 (part 2) · LDEK · Cast partial dentures
Indicate true statements regarding designing and function of occlusal rest:
1) it is a metal independent pique coming out of the cast removable denture base or departing from the clasp arms towards the occlusal surface or incisal edge;
2) they are located on the vertical surfaces;
3) they prevent the extrusion of abutment teeth;
4) they shape the occlusal surface by rotated teeth;
5) they serve as indirect retainers
6) they support cast removable denture and prevent from its settlement.
Correct answer is:
2) they are located on the vertical surfaces;
3) they prevent the extrusion of abutment teeth;
4) they shape the occlusal surface by rotated teeth;
5) they serve as indirect retainers
6) they support cast removable denture and prevent from its settlement.
Correct answer is:
- A. all of the above-mentioned.
- B. 2,4,5,6.
- C. 1,3,4,5,6.
- D. 2,3,4,5.
- E. 1,2,6
Hint
Rests should transmit forces along the long axis of the tooth — consider which tooth surfaces they must be seated on.
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