Dental INBDE Questions & Answers

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INBDE


Integrated National Board Dental Examination


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INBDE ACTUAL EXAM QUESTIONS (SAMPLE Q&A)

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Question: 136

Which of the following periods of dentofacial development is sometimes

characterized by the presence of various developmental errors, skeletal alignment, and soft tissue problems?


A. The predentition period

B. Deciduous dentition period

C. Mixed dentition period

D. Permanent dentition period


Answer: C


In some individuals, the mixed dentition period is characterized by the presence of various developmental errors, skeletal alignment, and soft tissue problems.


Question: 137

What shouldn't you do when treating a tooth that has been knocked out?


A. Handle the tooth by the root surface

B. Rinse the tooth in milk, or very briefly in water

C. Immediately replant the tooth in the socket, holding it in place

D. You should do all of the above

Answer: A


You should not handle the tooth by the root surface after it has been knocked out.

Which of the following periods of dentofacial development is characterized by a rapid growth of the jaw in three planes of space?


  1. The predentition period

  2. Deciduous dentition period

  3. Mixed Dentition Period

    Answer: A


    The predentition period is characterized by a rapid development of both jaws downward, forward, and medially.


    Question: 139

    Regarding the differences between deciduous and permanent teeth, the roots of deciduous molars are:


    A. Longer and more slender

    B. Shorter and less slender

    C. More stronger and shorter

    D. None of the above


    Answer: A


    The roots of deciduous molars are longer and more slender than the roots of permanent molars. They also have a significant amount of flare.


    Question: 140

    One of the basic differences between deciduous and permanent teeth is that the

    enamel of deciduous teeth is:

  4. Permanent dentition period



  1. Harder and thicker

  2. Thicker and yellowish

  3. Thinner and whiter

  4. None of the above


Enamel of deciduous teeth is thinner and whiter in appearance. The thinness of the enamel in deciduous teeth and its lower level of mineralization could be responsible for its whiter appearance


Question: 141

eruption of which of the following:


A. First four permanent molars

B. First six permanent molars

C. First two permanent premolars

D. First four permanent premolars


Answer: A


The transition from primary to permanent dentition begins about 6 years of age with the eruption of the first four permanent molars. The timing of when the primary teeth are shed affects the emergence of permanent teeth, i.e., early shedding of primary teeth advances the emergence of permanent teeth.


Question: 142

When do the upper deciduous canines usually erupt?


A. 8-12 months

B. 10-14 months

C. 16-20 months

D. 20-24 months


Answer: C

The transition from the deciduous to the permanent dentition begins with the


Both upper and lower deciduous canines usually erupt around 16-20 months.


Question: 143

A 70-year-old will spend how much of his/her life chewing with their deciduous teeth?


  1. 6%

  2. 12%

  3. 20%

  4. 40%


An individual who is 70 years old will spend 91% of his/her life chewing with permanent teeth, but the same person will spend only 6% of his/her life chewing with the primary/deciduous teeth.


Question: 144

Which of the following major paired glands produce saliva?


A. Parotid glands

B. Submandibular glands

C. Sublingual glands

D. All of the above


Answer: D


Saliva is produced by three major paired glands (parotid, sublingual, and submandibular) and also by the minor salivary glands.


Question: 145

Which of the following lobes of the brain controls emotions, judgments, and

motor aspects of speech?


A. Parietal lobe

Answer: A


  • Frontal lobe

  • Occipital lobe

  • Temporal lobe


  • Answer: B


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