Question 37 · LDEK · Bridges
Indicate the true statements concerning the modified ridge lap pontic of a prosthetic bridge:
1) gingival surface of the pontic should be concave;
2) gingival surface of the pontic should align to the mucosa on the whole surface of the alveolar ridge;
3) the most favorable is to fabricate the gingival surface of the pontic out of ceramics or polished metals;
4) the pontic should fill interproximal spaces;
5) the pontic should be straight-line, with a reduced occlusal surface and lowered cusps.
The correct answer is:
2) gingival surface of the pontic should align to the mucosa on the whole surface of the alveolar ridge;
3) the most favorable is to fabricate the gingival surface of the pontic out of ceramics or polished metals;
4) the pontic should fill interproximal spaces;
5) the pontic should be straight-line, with a reduced occlusal surface and lowered cusps.
The correct answer is:
- A. 3,5.
- B. 2,3,5.
- C. only 3.
- D. 2,3.
- E. 1,4.
Hint
A hygienic pontic touches the ridge minimally on the labial side and must be cleanable with floss; think about surface shape, material and embrasures.
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