Oral Microbiology

Question 1

Classic honey-colored crusts are consistent with which diagnosis?

Answer 1

Impetigo

Question 2

What causes impetigo?

Answer 2

Strep pyogenes or Staph aureus

Question 3

Strep throat is more accurately called…?

Answer 3

tonsillitis and pharyngitis

Question 4

What are the main causes of strep throat?

Answer 4

Group A Streptococci (bacterial), Influenza, Epstein-barr virus

Question 5

What is Scarlet Fever?

Answer 5

disseminated Group A Strep infection

Question 6

What classic sign is consistent with scarlet fever?

Answer 6

Strawberry tongue (white in first two days, red after that)

Question 7

What is caused by Corynebacterium?

Answer 7

diphtheria

Question 8

Primary syphilis is commonly presented by what sign?

Answer 8

Chancres (pronounced shankers)

Question 9

How does tuberculosis present in the oral cavity?

Answer 9

With palatal growths or ulcerations on the lateral borders or anterior part of tongue

Question 10

The 9 banded armadillo is a host for what bacteria?

Answer 10

Mycobacterium leprae

Question 11

If a Pt comes in with a collapsed bridge of the nose, what is one possible diagnosis?

Answer 11

leprosy

Question 12

With what infection would you see sulfur granules?

Answer 12

Actinomycosis

Question 13

How does cat-scratch disease commonly present?

Answer 13

Swollen lymph nodes near the site of the scratch most common in kids

Question 14

Frequent use of a steroid inhaler can possibly cause what?

Answer 14

Candidiasis

Question 15

Erythematous candidiasis is AKA and is often seen involving who?

Answer 15

AKA Denture stomatitis because it’s commonly seen in Pts that never remove their denture

Question 16

What is a candida infection of the commissures called?

Answer 16

Angular chelitis

Question 17

Presentation of an antrolith (stone in the sinus) can be consistent with what infection?

Answer 17

Aspergillosis

Question 18

Younger patients with a primary herpetic infection can present with what?

Answer 18

gingivostomatitis (gingivitis with a fever)

Question 19

Patients older than 18 with a primary herpetic infection can present with what?

Answer 19

pharyngotonsillitis

Question 20

What oral manifestations are most strongly associated with HIV infection?

Answer 20

Candidiasis, hairy leukoplakia, kaposi’s sarcoma, non-hodgkin’s lymphoma, and periodontitis