DDS Doctor of Dental Surgery MCQ 2

Question 1

Which nerve provides sensory innervation to the mandibular anterior teeth?

Accepted Answer

Incisive nerve

Answer

The incisive nerve, a terminal branch of the inferior alveolar nerve, innervates the mandibular anterior teeth and premolars.

Question 2

A patient presents with a 'moth-eaten' pattern of bone destruction on radiograph. This appearance is most characteristic of which condition?

Accepted Answer

Osteomyelitis

Answer

Osteomyelitis classically produces a 'moth-eaten' pattern of bone destruction due to diffuse infiltration by the infectious process.

Question 3

Which salivary gland produces the highest proportion of serous secretion?

Accepted Answer

Parotid gland

Answer

The parotid gland is purely serous and produces approximately 25% of total saliva but nearly all serous secretion.

Question 4

During a maxillary sinus lift procedure, which vessel is most commonly encountered and must be avoided?

Accepted Answer

Posterior superior alveolar artery

Answer

The posterior superior alveolar artery courses through the lateral sinus wall and is the vessel most frequently encountered during sinus lift procedures.

Question 5

Which class of antibiotics works by inhibiting bacterial cell wall synthesis by binding penicillin-binding proteins?

Accepted Answer

Beta-lactams

Answer

Beta-lactam antibiotics (penicillins, cephalosporins) inhibit transpeptidases (penicillin-binding proteins) needed for peptidoglycan cross-linking in the bacterial cell wall.

DDS - Doctor of Dental Surgery Practice Test

DDS - Doctor of Dental Surgery Practice Test

DDS Doctor of Dental Surgery MCQ 2