NBDE Trivia 3

Question 1

Which cell type is responsible for the deposition of secondary dentin throughout life?

Accepted Answer

Odontoblasts

Answer

Odontoblasts remain viable throughout life and continuously produce secondary (physiologic) dentin.

Question 2

In removable partial denture design, which component prevents vertical displacement of the denture toward soft tissue?

Accepted Answer

Rest

Answer

Rests (occlusal, cingulum, or incisal) provide vertical support by transmitting occlusal forces to the abutment teeth.

Question 3

Which artery is the primary blood supply to the mandible?

Accepted Answer

Inferior alveolar artery

Answer

The inferior alveolar artery, a branch of the maxillary artery, is the principal blood supply to the mandible.

Question 4

Which medication is considered the first-line treatment for mild-to-moderate acute dental pain in patients without contraindications?

Accepted Answer

Ibuprofen

Answer

NSAIDs such as ibuprofen are recommended as first-line analgesics for acute dental pain due to their anti-inflammatory mechanism.

Question 5

What is the approximate pH at which enamel demineralization begins?

Accepted Answer

5.5

Answer

Enamel begins to demineralize at a critical pH of approximately 5.5, known as the critical pH for enamel.

NBDE - National Board Dental Examination Practice Test