MODEL ANALYSIS IN ORTHODONTICS _ Ortho MCQs

MODEL ANALYSIS IN ORTHODONTICS _ Ortho MCQs

MODEL ANALYSIS IN ORTHODONTICS _ Ortho MCQs

1. All of the following are mixed dentition analysis except:
A. Nance–Carey’s analysis
B. Moyer’s mixed dentition analysis
C. Total space analysis
D. Linder–Harth index

2. The most accurate cast analysis among the following is:
A. Moyer’s
B. Stanley–Kerber
C. Kerby
D. Tanaka–Johnston

3. If Carey’s arch perimeter analysis shows a discrepancy of more than 5 mm, then
A. Proceed with extraction of first premolar
B. Proceed with extraction of second premolar
C. Proceed with extraction of first molar
D. Do proximal stripping

4. Which of the following is true regarding Moyer’s mixed dentition analysis?
A. Can be done for both mandibular and maxillary arch
B. Estimation of size of the mandibular incisor on cast
C. Its analysis is based on radiograph
D. All of the above

5. In case of severe arch length discrepancy, which posterior teeth is usually displaced?
A. Mandibular second molar displaced buccally
B. Mandibular second premolar displaced lingually
C. Mandibular second premolar displaced buccally
D. Mandibular first premolar displaced buccally

6. Total space analysis was given by:
A. Korkhaus
B. L. Merrifield
C. Pont
D. Nance–Carey

7. Which one among the following is false regarding Stanley–Kerber analysis?
A. This method uses radiograph and cast for the estimation of space
B. It is the most accurate method
C. This is applicable to both the arches
D. Canine width can be read directly from the sum of premolar and incisor widths

8. Unfavorable mixed dentition analysis is an indication for:
A. Space maintenance and space regaining
B. Space maintenance and space supervision
C. Space regaining and gross discrepancy cases
D. Space supervision and gross discrepancy cases

9. Moyer mixed analysis give more accurate value for unerupted teeth at:
A. 75% probability
B. 50% probability
C. 70% probability
D. 85% probability

10. The ratio between the anatomic portion and the artistic portion should be
A. 2:1
B. 1:2
C. 3:1
D. 1:3

11. Anterior Bolton ratio is:
A. 91.3%
B. 100%
C. 82.3%
D. 77.2%

12. Excess in lower anterior Bolton is an indication for:
A. Build up in upper anteriors
B. Stripping in lower molars
C. Stripping in lower premolars
D. Extraction of lower incisors