Question 113 · LDEK · Open bite and deep bite
Indicate the true statements concerning partial deep bite:
1) this malocclusion is characterized by excessive vertical growth of the anterior maxillary alveolar process and impeded growth of lateral maxillary and mandibular alveolar processes;
2) anterior mandibular movement till the tete-a-tete position of upper and lower incisors - excessive vertical space between occlusal surfaces of lateral teeth is formed;
3) two-step occlusal plane;
4) if the malocclusion is not complicated by distocclusion or scissor's bite - no change in extraoral features is present;
5) mandibular angle and intermaxillary angle are always decreased.
The correct answer is:
2) anterior mandibular movement till the tete-a-tete position of upper and lower incisors - excessive vertical space between occlusal surfaces of lateral teeth is formed;
3) two-step occlusal plane;
4) if the malocclusion is not complicated by distocclusion or scissor's bite - no change in extraoral features is present;
5) mandibular angle and intermaxillary angle are always decreased.
The correct answer is:
- A. all the above.
- B. 1,2,4.
- C. 2,3,4.
- D. 2,5.
- E. 2,3,5.
Hint
In partial deep bite only the anterior segment is vertically overdeveloped; consider what this means for the lateral segments and the face.
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