NDAEB Dental Sciences Foundations 2

Question 1

Which cranial nerve provides sensory innervation to the mandibular teeth and is the target of an inferior alveolar nerve block?

Accepted Answer

Trigeminal nerve (CN V) - mandibular division (V3)

Answer

Facial nerve (CN VII)

Answer

Glossopharyngeal nerve (CN IX)

Answer

Hypoglossal nerve (CN XII)

Question 2

What is the primary function of ameloblasts during tooth development?

Accepted Answer

Formation of enamel

Answer

Formation of dentin

Answer

Formation of cementum

Answer

Formation of pulp tissue

Question 3

Which salivary gland produces predominantly serous (watery) secretions and is the largest salivary gland?

Accepted Answer

Parotid gland

Answer

Sublingual gland

Answer

Submandibular gland

Answer

Minor salivary glands of the palate

Question 4

In the permanent dentition, how many roots does a typical maxillary first molar have?

Accepted Answer

Three roots

Answer

One root

Answer

Two roots

Answer

Four roots

Question 5

What is the normal pH range of healthy saliva in the oral cavity?

Accepted Answer

6.2 to 7.6

Answer

4.5 to 5.5

Answer

8.0 to 9.0

Answer

3.0 to 4.0

Question 6

Which type of bone forms the thin wall of the tooth socket (alveolus) and is visible on dental radiographs as a radiopaque line?

Accepted Answer

Lamina dura (alveolar bone proper)

Answer

Cortical bone of the mandibular body

Answer

Cancellous (trabecular) bone

Answer

Basal bone