FREE NBDE Knowledge Questions and Answers

Question 1

What is the most common form of gingival disease?

Accepted Answer

Plaque-induced gingivitis

Answer

Non-plaque-induced gingivitis

Answer

Generalized chronic periodontitis

Answer

Generalized aggressive periodontitis

Answer

Necrotizing ulcerative gingivitis

Question 2

Which of the following systematic diseases is not associated with aphthous-like ulcerations?

Accepted Answer

Irritable bowel syndrome

Answer

Behcet syndrome

Answer

Celiac disease

Answer

IgA deficiency

Answer

Nutritional deficiencies

Question 3

What salivary gland disorder would you suspect with your patient who suffers from keratoconjunctivits sicca and xerostomia?

Accepted Answer

Sjogren syndrome

Answer

Rheumatoid arthritis

Answer

Trigeminal neuralgia

Answer

Sialadenosis

Answer

Pleomorphic adenoma

Question 4

What is a common ingredient in soft drinks, gum candy, toothpaste, breath fresheners, dental floss that often causes contact stomatitis?

Accepted Answer

Flavoring

Answer

Preservatives

Answer

Xylitol

Answer

Riboflavin

Answer

Sorbitol

Question 5

Which virus is associated with Forchheimer's sign?

Accepted Answer

Rubella

Answer

Mumps

Answer

Rubeola

Answer

HIV

Answer

Hand-foot-and-mouth disease

Question 6

A patients X-rays revealed lesions located on the substantia nigra portion of his brain. Which of the following disease may this patient be diagnosed with?

Accepted Answer

Parkinson’s disease

Answer

Huntington’s disease

Answer

Crohn’s disease

Answer

Multiple Sclerosis

Answer

Hyperthyroidism

Question 7

What is the resting membrane potential of a cell that is in state of domancy?

Accepted Answer

-70 mV

Answer

-60 mV

Answer

-80 mV

Answer

+60 mV

Answer

+70 mV

Question 8

The zona glomerulosa is responsible for:

Accepted Answer

Synthesis of aldosterone

Answer

Synthesis of androgens

Answer

Synthesis of cortisol

Answer

Synthesis of ACTH

Question 9

A heterotrimeric protein composed of three individual peptide chains describes:

Accepted Answer

Collagen

Answer

Hemoglobin

Answer

Myoglobin

Answer

Elastin

Question 10

Which of the following is the most common type of occlusion in a normal dentition?

Accepted Answer

Class I

Answer

Class II Division 1

Answer

Class II Division 2

Answer

Class III