NBDE Part 2 Practice Exam Series 17 – Orthodontics NBDE Part 2 Study Guide

Question 11: Which of the following statement is correct?

After 6 years of the age, the greatest increase in the size of the mandible occurs mesial to the first molar.

Coronoid process in the major site of vertical growth in the mandible.

 

A. Both statements are correct

B. Both statements are incorrect

C. The first statement is correct while the second statement is incorrect

D. The first statement is incorrect while the second statement is correct

Answer

Answer: [B]

 

Question 12: Which of the following statement is correct?

During growth, maxilla migrates downward and forward.

The amount of forward displacement exactly equals the amount of posterior lengthening.

 

A. Both statements are correct

B. Both statements are incorrect

C. The first statement is correct while the second statement is incorrect

D. The first statement is incorrect while the second statement is correct

Answer

Answer: [A]

 

Question 13: Which of the following statement is correct?

The growth in the width of the jaws is usually completed before the beginning of the adolescent growth spurt.

The growth in length of the jaws continues through the growth spurt.

 

A. Both statements are correct

B. Both statements are incorrect

C. The first statement is correct while the second statement is incorrect

D. The first statement is incorrect while the second statement is correct

Answer

Answer: [A]

 

Question 14: For how long does it take for the stabilization process after simple molar uprighting?

A. 1 month

B. 2 months

C. 6 months

D. 12 months

Answer

Answer: [B]

 

Question 15: What is the focal-film distance for lateral cephalogram?

A. 2 feet

B. 4 feet

C. 5 feet

D. 6 feet

Answer

Answer: [C]

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