Question 87 (part 2) · LDEK · Partial dentures
Indicate true statements regarding telescoping crowns:
1) they serve as fixation elements for cast removable dentures;
2) they constitute of prosthetic crown anatomically shaped fixed on abutment tooth and crown shaped as cylinder or cone connected to removable denture;
3) in case of several telescopic crown fabrication, parallelism of abutment teeth is not required;
4) mechanism of telescopic crowns consists in using the friction force or wedging;
5) there is a simple access for periodontologist during periodontal surgery.
Correct answer is:
2) they constitute of prosthetic crown anatomically shaped fixed on abutment tooth and crown shaped as cylinder or cone connected to removable denture;
3) in case of several telescopic crown fabrication, parallelism of abutment teeth is not required;
4) mechanism of telescopic crowns consists in using the friction force or wedging;
5) there is a simple access for periodontologist during periodontal surgery.
Correct answer is:
- A. all of the above-mentioned.
- B. 1,2,4.
- C. 1,3,5.
- D. 1,4,5.
- E. 2,3,4.
Hint
Recall which telescopic crown is cemented on the abutment and which is carried by the denture, and how several primary crowns must relate.
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