physical & chemical injuries

Question 1

“white line” located on the buccal mucosa AT the the level of occlusal plane
usually bilateral and caused due to frictional irritation/ trauma from the teeth

Answer 1

Linea Alba

Question 2

ragged superficial keratosis on the anterior buccal mucosa symmetrically distributed ABOVE AND BELOW the plane of occlusion

Answer 2

Morsicatio buccarum

Question 3

differential diagnosis for morsicatio buccarum?

Answer 3

Oral hairy leukoplakia

Question 4

common lesion for any age group,
buccal & labial mucosa and tongue are most common in addition to bony protruberances.
removable, yellowish fibrinopurulent membrane and surrounded by variable erythema and
HYPERKERATOTIC BORDER

Answer 4

Traumatic Ulcer

Question 5

Leukoplakia has ________ border where as reactive keratosis (traumatic Ulcer) has ________ border.

Answer 5

well defined

blended

Question 6

True or false

corticosteroids are generally inappropriate to treat traumatic ulcer.

Answer 6

True

Question 7

Zilactin or Orabase are used to treat what

Answer 7

traumatic ulcer

Question 8

palatal mucosa and anterior tongue are damaged
coagulation necrosis of the epithelium
subepithelial vesicle/bulla formation if severe.
classic pizza burn

Answer 8

thermal injury

Question 9

coagulation necrosis of epithelium leads to White surface changes.
occurs due to many OTC such as aspirin, hydrogen peroxide (whitening agent) etc.

Answer 9

Chemical injury

Question 10

secondary to ionizing radiation used to treat malignancies in head and neck region.
involves tissue within the field of radiation
damage to BASAL CELLS.

Answer 10

radiation mucositis

Question 11

________ are class of drugs that bind to bone and inhibit its degradation (resorption).

Answer 11

Bisphosphonates

Question 12

Bisphosphonates inhibit osteoblast function

true or false

Answer 12

False

they inhibit osteoCLAST not osteoblast

Question 13

Bisphophonates are used in what diseases as anti-resoptive therapy

Answer 13

paget’s disease and osteoporosis and other malginancies that causes bone resorption

Question 14

what are the 3 criteria that need to me met before we can make diagnosis for MRONJ

Answer 14

1. current or previous treatment with a bisphosphonate or other associated agent
2. exposed bone in the masillofacial region persisting for more than 8 weeks.
3. No history of radiation therapy to the jaws.

Question 15

which one is more susceptible for MRONJ?

mandible or maxillia

Answer 15

mandible is much more susceptible than maxilla
mandible : maxilla
2: 1

Question 16

Bisphophonates or other associated durgs cause MRONJ, so it is okay for the dentist to ask patient to stop taking.
true or false

Answer 16

False

because risks associated with cancer and osteoporosis (bisphosphonates are taken for this) outweigh those of ONJ

Question 17

differential diagnosis for foreign body tattoos

Answer 17

melanocytic lesions

Question 18

light brown diffuse melanin pigmentation of oral mucosa

mostly found on the anterior facial gingiva

Answer 18

smokers melanosis

Question 19

minocycline is stains bone what color

Answer 19

greenish. it classic tetracycline

Question 20

anatomic sites in which a bony prominence is covered by thin mucosal surface is ?
this is where you get oral ulceration with bone sequesteration

Answer 20

lingual surface of posterior mandible along mylohyoid ridge.

Question 21

dome shaped, fainly radiopaque lesion arising from floor of the maxillary sinus.
inflmmatory exudate accumulaates under sinus mucosa and casues elevation

ASYMPTOMATIC, incidental finding on pan x-ray

Answer 21

Antral pseudocyst
compare to air filled, this is fluid filled and is radio opaque
no treatment neccessary