NBDE Part II – Operative Dentistry – Multiple Choice Question Papers

NBDE Part II – Operative Dentistry – Multiple Choice Question Papers

Operative dentistry is a specialized branch of the dentistry which is concerned with the prevention and management of the dental defects either carious or non-carious lesions of the teeth with the help of metallic or non-metallic dental materials. Following 20 different Operative Dentistry MCQ‘s will help in preparing NBDE Part 2 exam.

Question 1: What is the purpose of DIFOTI in operative dentistry?

A. Helps in diagnosis of bone loss in children

B. For diagnosing occlusal caries

C. For calculating calcium content of the enamel

D. For diagnosing proximal caries

Answer & Explanation

Answer: [D]


Question 2:  How much time is taken by the undifferentiated mesenchymal cells present in the dental pulp to differentiate and replace damaged odontoblasts?

A. 1 day

B. 7 days

C. 15 days

D. 30 days

Answer & Explanation

Answer: [C]


Question 3: Due to which of following reason sometimes affected dentin is left behind while preparing tooth cavity?

A. Patient complaining of pain on caries excavation

B. It is impermeable and will protect the underlying pulpal tissue

C. It hard and difficult to remove

D. It has capacity to remineralize

Answer & Explanation

Answer: [D]


Question 4: During preparation of tooth cavity rake angle of the dental bur should ______ so that it can cut more effectively

A. Positive

B. Negative

C. Radial

D. Rake angle does not define the effectiveness of the dental bur

Answer & Explanation

Answer: [A]


Question 5: Which of the following rubber dam retainer is preferred when maxillary molar teeth are to be used as anchor tooth?

A. W2

B. W4

C. W7

D. W8

Answer & Explanation

Answer: [D]


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