Question 1

Down syndrome is directly linked to a genetic abnormality of what chromosome?

Accepted Answer

A) XXII 
B) XXI 
C) XIIX 
D) XV

Question 2

Which of the following statements is TRUE regarding vitamin K deficiency?

Accepted Answer

A) Increased activity of clotting factors II, VII, IX, X 
B) Decreased PT 
C) No change in PTT 
D) Caused by malabsorption of fat

Question 3

After long-term progression, a split tooth can become:

Accepted Answer

A) A compound fracture 
B) A vertical root fracture 
C) A compound root fracture 
D) A vertical compound root fracture

Question 4

Which of the following ridges are the rounded borders of enamel that form the margins of the surfaces of premolars and molars, mesially and distally?

Accepted Answer

A) Triangular ridges 
B) Marginal ridges 
C) Oblique ridges 
D) Vertical ridges

Question 5

What is gum disease called when it becomes chronic and involves bone?

Accepted Answer

A) Gingivitis 
B) Periodontal disease 
C) Geographic tongue 
D) Chronic stomatitis

Question 6

Fluoridation can assist in decreasing the amount of caries. This is especially true for what age group?

Accepted Answer

A) The elderly 
B) Infants 
C) Children 
D) Middle-aged adults

Question 7

Which of the following statements about the somatic nervous systemis not true?

Accepted Answer

A) it consists of 12 cranial nerves 
B) it transmits temperature and pain 
C) it innervates skeletal muscle 
D) it has short preganglionic motor neurons

Question 8

Mineralized plaque is called;

Accepted Answer

A) Calcification 
B) Calculus 
C) Calcified proliferation 
D) Biofilm

Question 9

What is it called when aluminum disks absorbs X-ray low penetrating power?

Accepted Answer

A) Filtration 
B) Abduction 
C) Filtration annex 
D) Abduction annex

Question 10

Errors in radiographs happen often. Which term is an imaging error:

Accepted Answer

A) Oldfield films 
B) Crossed films 
C) Light films 
D) Pressed films

Question 11

When do ameloblasts begin to secrete enamel matrix?

Accepted Answer

A) During the cap stage 
B) After the odontoblasts form dentin 
C) Before the odontoblasts form dentin 
D) After root formation begins

Question 12

In which of the following transport processes do solid materials enter the cell in membrane-bound vesicles?

Accepted Answer

A) Passive transport 
B) Osmosis 
C) Pinocytosis 
D) Phagocytosis

Question 13

Stevens-Johnson syndrome and TENs are variants of which disease?

Accepted Answer

A) Aphthous ulcers 
B) Penphigus vulgaris 
C) Erythema multiforme 
D) Lichen Planus

Question 14

Which tract carries sensations of pain and temperature from free nerve ending receptors throughout the body?

Accepted Answer

A) Lateral spinothalamic tract 
B) Anterior spinothalamic tract 
C) Tectospinal tract 
D) Reticulospinal tract

Question 15

What three ways can alginate capture a decreased setting time?

Accepted Answer

A) Decreasing water temperature, increasing the amount of water combined with alginate powder, and by gradually mixing ingredients 
B) The setting time of alginate cannot decrease without adding gluten 
C) Increasing the water temperature, decreasing the amount of water combined with alginate powder, and by rapidly mixing casting ingredients 
D) The setting time of alginate cannot decrease

Question 16

When smiling, the black space between the buccal surface of the teeth and the cheek are the what?

Accepted Answer

A) Golden proportion 
B) Black corridors 
C) Buccal corridors 
D) Occlusal proportion

Question 17

Which of the following statements represents the main function of the vestibulospinal descending pathway?

Accepted Answer

A) This tract facilitates activity of extensor (antigravity) muscles providing basic posture 
B) This tract modifies motor and sensory functions of the spinal cord 
C) This tract controls flexor tone in the tongue 
D) Visual-following and eye-centering reflexes

Exam 1: Dental Board