Question 1

What cranial nerve is responsible for the sense of taste on the anterior part of the tongue?

Accepted Answer

The facial nerve carries the taste sensation from the anterior part of the tongue. The posterior one-third part of the tongue is supplied by the glossopharyngeal nerve.

Question 2

Which permanent tooth closely resembles the primary mandibular 2nd molar?

Accepted Answer

The primary mandibular 2nd molar resembles the mandibular 1st molar; however, the three buccal cusps of the primary tooth are nearly equal in size.

Question 3

Regarding the pathophysiology of shock, which of the following statements is true?

Accepted Answer

There is a decrease in urinary output in patients suffering from systemic shock. Shock is a condition due to decreased tissue perfusion.

Question 4

Which of the following is not a cause of vitamin D deficiency?

Accepted Answer

Increased phosphate intake is not a cause of vitamin D deficiency; the opposite is true. Vitamin D deficiency can lead to numerous diseases of the bone, including osteoporosis and osteomalacia.

Question 5

Which of the following choices is not a part of the cellular stage of acute inflammation?

Accepted Answer

Vasodilation is not part of the cellular stage of acute inflammation. Acute inflammation is the initial response to tissue injury and consists largely of leukocyte infiltration ridding of bacteria and necrotic tissue.

Question 6

Which of the following statements is TRUE of histamine function?

Accepted Answer

One function of histamine is to cause vasodilation. Histamine is a molecule that functions generally as an inflammatory mediator.

Question 7

Which of the following does not typically comprise the majority of dental calculus?

Accepted Answer

By-products of viral replication are not typically a major component of dental calculus.

Question 8

Which of the following signs is NOT present in lower motor neuron lesion?

Accepted Answer

Exaggerated reflexes are not present in lower motor neuron lesion. The common features include true atrophy, weakness of individual muscles, fibrillations, and hyporeflexia.

Question 9

Hyperglycemia is characterized by blood glucose levels greater than which of the following?

Accepted Answer

Hyperglycemia is characterized by a blood glucose level greater than 125 mg/dL.

Question 10

Which of the following statements is not true regarding chronic bronchitis?

Accepted Answer

There is an increased Reid index seen in patients afflicted with chronic bronchitis. The Reid index measures the ratio of mucous gland thickness to bronchial wall thickness.

Question 11

Which of the following statements is TRUE regarding cellular dysplasia?

Accepted Answer

Cellular dysplasia involves atypical cells that do not invade the basement membrane.

Question 12

Which of the following types of periodontal disease is commonly characterized by punched-out interproximal papillae, fetor oris, and marginal gingival pseudomembrane formation?

Accepted Answer

Necrotizing ulcerative gingivitis is characterized by punched-out interproximal papillae, plaque, fetid odor of the mouth, gingival bleeding, marginal gingival pseudomembrane formation, and pain.

Question 13

Which of the following signs is characteristic of damage to the corticospinal (pyramidal) system?

Accepted Answer

The Babinski sign (dorsiflexion of the great toe in response to stroking the plantar aspect of the foot) is a characteristic sign of pyramidal tract involvement

Question 14

Which of the following "plaque control agents" has the highest alcohol content?

Accepted Answer

Listerine contains the highest alcohol content of all chemical plaque control agents. It contains a phenolic/ essential oil compound and 26.9% alcohol.

Question 15

Which of the following bacteria is most strongly associated with sex-steroiD-induced gingivitis?

Accepted Answer

Prevotella intermedia is often found in high proportions where gingivitis is caused by sex steroid fluctuation.

Question 16

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

Accepted Answer

Vitamin K deficiency is caused by malabsorption of fat. This is commonly due to pancreatic and GI dysfunction.

Question 17

Which of the following statements is not true of cell-mediated immunity ?

Accepted Answer

Cell-mediated immunity is a part of the host defense, which involves T lymphocytes, NK cells, and macrophages but is not predominately B-cell mediated.

Question 18

Bitter taste cells transmit taste stimuli by which of the following?

Accepted Answer

Bitter taste cells initiate nerve conduction via second messengers. Intracellular Ca2+ levels are increased by activation of IP3 at the cell membrane receptor.

Question 19

Which of the following are not common clinical features of anterior cord syndrome?

Accepted Answer

Babinski sign is not a feature of anterior cord syndrome. The common clinical features of anterior cord syndrome include loss of motor function and sensation of pain and temperature. There is a preservation of light touch and preservation of proprioception and position sense.

Question 20

Which of the following is not secreted by the small intestine?

Accepted Answer

Lipase is secreted by the pancreas. It is the only enzyme of the GI tract that can catabolize triacylglycerols.

Quiz 1: Dental Board