Question 58 (part 2) · LDEK · Bridges
Indicate conditions necessary for fabrication of bridges veneered with porcelain:
1) sufficient number of abutments, their favorable placement, appropriate fixation of abutments in the alveoluses;
2) absence of preriodontitis, parallel roots, proper anatomical shape of the abutments;
3) absence of parafunctions, parallel long axis of clinical crowns;
4) parallel long axis of clinical crowns and roots and sufficient number of abutments;
5) aligned occlusal surface.
Correct answer is:
2) absence of preriodontitis, parallel roots, proper anatomical shape of the abutments;
3) absence of parafunctions, parallel long axis of clinical crowns;
4) parallel long axis of clinical crowns and roots and sufficient number of abutments;
5) aligned occlusal surface.
Correct answer is:
- A. only 1.
- B. 1,2,3.
- C. 2,4.
- D. 1,3,5.
- E. 1,5.
Hint
Abutments need parallel clinical crowns for a common path of insertion, but their roots need not be parallel.
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