Question 90 · LDEK · Complete dentures
Following a total loss of dentition, bone atrophy within maxillary and mandibular alveolar ridges occurs. The results of these changes include:
1) atrophy of the palatal slope of the maxillary alveolar ridge;
2) atrophy of the vestibular slope of the maxillary alveolar ridge;
3) atrophy of the mandibular alveolar ridge in the anterior region from the vestibular side, and in posterior regions from lingual slopes;
4) atrophy of the mandibular alveolar ridge in the anterior region from the lingual side, and in posterior regions from the vestibular side.
The correct answer is:
2) atrophy of the vestibular slope of the maxillary alveolar ridge;
3) atrophy of the mandibular alveolar ridge in the anterior region from the vestibular side, and in posterior regions from lingual slopes;
4) atrophy of the mandibular alveolar ridge in the anterior region from the lingual side, and in posterior regions from the vestibular side.
The correct answer is:
- A. 1,3.
- B. 1,4.
- C. 2,3.
- D. 2,4.
- E. only 2.
Hint
Recall the direction of resorption: the maxillary arch shrinks inward, while the mandibular arch becomes relatively wider posteriorly.
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