Question 228 · LDEK · Craniofacial and occlusal development
Choose correct statements regarding the features of full primary dentition:
1) interproximal contacts are observed along the whole dental arch;
2) occlusal plane in posterior part is curving downwards;
3) occlusal plane in posterior part is curving upwards;
4) dental arches are semicircle shaped;
5) presence of spacing between the lateral incisor and canine in upper arch and canine and first molar in lower arch.
The correct answer is:
2) occlusal plane in posterior part is curving downwards;
3) occlusal plane in posterior part is curving upwards;
4) dental arches are semicircle shaped;
5) presence of spacing between the lateral incisor and canine in upper arch and canine and first molar in lower arch.
The correct answer is:
- A. 1,2,5.
- B. 1,4,5.
- C. 4,5.
- D. 3,4,5.
- E. only 4.
Hint
Picture the spaced, flat and rounded arches of the complete primary dentition and recall where the primate spaces lie.
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