NBDE Part 1 – Dental Anatomy And Occlusion Questions With Answer Keys

Question 6: Which of the following condition would happen to maxillary first molar when an opposing mandibular tooth is missing?

A. Intrusion

B. Extrusion

C. Retrusion

D. Protrusion

Answer & Explanation

Answer: [B]

 

Question 7: Which of the following statement is CORRECT regarding calciotraumatic line?

  1. They are formed due to death of the odontoblastic layer
  2. They remain even after the removal of dental caries

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 & Explanation

Answer: [D]

 

Question 8: Which of the following cusp present in permanent maxillary second molar considered to least developed as compared to other cusps?

A. Distolingual

B. Cusp of carabelli

C. Distobuccal

D. Mesiolingual

Answer & Explanation

Answer: [A]

 

Question 9: In what sequence do the permanent maxillary teeth erupt?

A. 1 6 2 4 3 5 7 8

B. 6 1 2 3 4 5 7 8

C. 1 2 3 4 5 6 7 8

D. 6 1 2 4 3 5 7 8

Answer & Explanation

Answer: [D]

 

Question 10: In which of the following permanent tooth occlusal ‘y’ pattern groove is most likely to be found?

A. Mandibular second premolar

B. Mandibular first premolar

C. Maxillary second premolar

D. Maxillary first premolar

Answer & Explanation

Answer: [A]

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