Question 10 · LDEK · Complete dentures
The general guidelines for aesthetic arrangement of the maxillary anterior teeth include:
1) incisal edges of the maxillary anterior teeth should be parallel to the occlusal plane;
2) incisal edges of the maxillary anterior teeth should be parallel to the lower lip when smiling;
3) with a slight smile the maxillary central incisors should be shown of 1-2 mm below the upper lip;
4) display of the maxillary central incisors depends on the shape of the nasal base;
5) in the angles of the mouth there should be a space free of teeth visible on smiling.
The correct answer is:
2) incisal edges of the maxillary anterior teeth should be parallel to the lower lip when smiling;
3) with a slight smile the maxillary central incisors should be shown of 1-2 mm below the upper lip;
4) display of the maxillary central incisors depends on the shape of the nasal base;
5) in the angles of the mouth there should be a space free of teeth visible on smiling.
The correct answer is:
- A. 1,3,5.
- B. 1,4,5.
- C. 2,3,5.
- D. 2,4,5.
- E. 2,3,4.
Hint
Think of the smile line, the incisal display with a slight smile, and the dark spaces seen lateral to the posterior teeth when smiling.
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