ORAL DIAGNOSIS Sample Questions

Question 1

acantholysis, resulting from desmosome weakening by autoantibodies directed against the protein desmoglein, is the disease mechanism attributed to which of the following?
A. epidermolysis bullosa
B. mucous membrane pemphigoid
C. pemphigus vulgaris
D. herpes simplex infections
E. herpangina

Answer 1

C

Question 2

HPV has been found in all of the following lesions EXCEPT one. which is the EXCEPTION?
A. oral papillomas
B. verruca vulgaris of the oral mucosa
C. condyloma acuminatum
D. condyloma latum
E. focal epithelial hyperplasia

Answer 2

D

Question 3

intranuclear viral inclusions are seen in tissue specimens of which of the following?
A. solar cheilitis
B. minor aphthous ulcers
C. geographic tongue
D. hairy leukoplakia
E. white sponge nevus

Answer 3

D

Question 4

the odontogenic neoplasm, which is composed of loose, primitive-appearing connective tissue that resembles dental pulp, microscopically is known as \_\_\_.
A. odontoma
B. ameloblastoma
C. ameloblastic fibroma
D. ameloblastic fibro-odontoma
E. odontogenic myxoma

Answer 4

E

Question 5

a biopsy specimen of the lower lip salivary glands showed replacement of parenchymal tissue by lymphocytes. the patient also had xerostomia and keratoconjunctivitis sicca. these findings are indicative of which of the following?
A. lymphoma
B. crohn's disease
C. mymps
D. sjogren's syndrome
E. mucous extravasation phenomenon

Answer 5

D

Question 6

a patient seeks help for recurrent palatal pain. she presents with multiple punctate ulcers in the hard palate that were preceded by tiny blisters. her lesions typically heal in about 2 weeks and reappear during stressful times. she has \_\_\_.
A. aphthous ulcers
B. recurrent primary herpes
C. recurrent secondary herpes
D. erythema multiforme
E. discoid lupus

Answer 6

C

Question 7

conservative surgical excision would be appropriate treatment and probably curative for which of the following?
A. nodular fasciitis
B. fibromatosis
C. fibrosarcoma
D. rhabdomyosarcoma
E. adenoid cystic carcinoma

Answer 7

A

Question 8

on a routine radiographic examination, a well-defined radiolucent lesion was seen in the body of the mandible of a 17-year old boy. at the time of operation, it proved to be an empty cavity. what is this lesion?
A. osteoporotic bone marrow
B. aneurysmal bone cyst
C. odontogenic keratocyst
D. static bone cyst
E. traumatic bone cyst

Answer 8

E

Question 9

a 21-year old woman went to her dentist because of facial asymmetry. this asymmetry had developed gradually over 3 years. the patient had no symptoms. a diffusely opaque lesion was found in her right maxilla. all laboratory tests (complete blood count, alkaline phosphatase, calcium) were within normal limits. a biopsy specimen was interpreted as a fibro-osseous lesion. the patient most likely has \_\_\_
A. cementoblastoma
B. fibrous dysplasia
C. cherubism
D. osteosarcoma
E. chronic osteomyelitis

Answer 9

C

Question 10

a cutaneous maculopapulary rash of the head and neck preceded by small ulcers in the buccal mucosa would suggest which of the following?
A. primary herpes simplex infection
B. rubeola
C. varicella
D. primary syphilis
E. actinomycosis

Answer 10

B

Question 11

the idiopathic condition in which destructive inflammatory lesions featuring necrotizing vasculitis are seen in the lung, kidney, and upper respiratory tract is known as \_\_\_.
A. epidermolysis bullosa
B. stevens-johnson syndrome
C. sturge-weber syndrome
D. wegener's granulomatosis
E. secondary syphilis

Answer 11

D

Question 12

from the following list, select the 4 jaw lesions or diseases that are characterized microscopically by the presence of conspicuous numbers of multinucleated giant cells:
A. central giant cell granuloma
B. ossifying fibroma
C. hyperparathyroidism
D. calcifying epithelial odontogenic tumor
E. aneurysmal bone cyst
F. calcifying odontogenic cyst
G. cherubism

Answer 12

A, C, E, G

Question 13

for each clinical feature listed, select the most closely linked disease or lesion from the list provided:
A. solitary, shallow, oval ulcer of buccal mucosa
B. bilateral, reticular white lines of buccal mucosa
C. generalized enlargement of erythematous gingival tissues
D. solitary nodular mass of the dorsal tongue
E. darkly colored macule of attached gingiva
F. fluctuant nodule of lower lip
1. granular cell tumor
2. leukemia
3. amalgam tattoo
4. aphthous ulcer
5. mucous extravasation phenomenon
6. lichen planus

Answer 13

A4
B6
C2
D1
E3
F5

Question 14

from the following list, select the 3 systemic diseases in which patients may develop aphthous ulcers:
A. celiac sprue
B. sarcoidosis
C. amyloidosis
D. behcet's syndrome
E. crohn's disease
F. neurofibromatosis

Answer 14

A, D, E

Question 15

x-ray beam A is produced using 70 kVp, 7 mA, and 0.1 s. x-ray beam B is produced using 70 kVp, 10 mA, and 0.15 s. which of the following 2 statements are correct?
A. beam A has higher mean energy
B. beam B has higher mean energy
C. beam B has a higher number of x-ray photons
D. the mean energies of the two beams are equal
E. the maximum energy of the x-ray photons in higher for beam B

Answer 15

C, D

Question 16

which of the following 2 items influence the mean energy of an x-ray beam?
A. kilovoltage
B. milliamperage
C. exposure time
D. amount of filtration
E. collimation
F. using a rotating anode

Answer 16

A, D

Question 17

the function of the filament is to \_\_\_.
A. convert electrons into photons
B. convert photons into electrons
C. release photons
D. release electrons
E. none of the above

Answer 17

D

Question 18

the MOST radiosensitive of the following cells in terms of cell killing is the \_\_\_.
A. cardiomyocyte
B. basal epithelial cell
C. endothelial cell
D. neuron
E. polymorphoneuclear leukocyte

Answer 18

B

Question 19

for each of the numbered radiation effects, indicate whether the effects are stochastic or deterministic:
A. stochastic effect
B. deterministic effect
1. thyroid cancer
2. xerostomia
3. cataract formation
4. heritable effects
5. oral mucositis

Answer 19

A1, 4

B2, 3, 5

Question 20

photoelectric interactions are highest in \_\_\_.
A. enamel
B. dentin
C. cementum
D. pulp

Answer 20

A

Question 21

the photosensitive component of an x-ray film is \_\_\_.
A. silver halide crystals
B. sodium thiosulfate crystals
C. gelatin
D. rare earth elements

Answer 21

A

Question 22

the effective dose from a limited cone-beam CT scan of the anterior maxilla is 20 uSv. the effective dose from a full-mouth radiographic examination (with round collimation and thyroid collar) is 120 uSv. based on these data, which of the following statements is TRUE regarding radiation-induced cancer risk?
A. risk from the full-mouth radiographic examination is higher
B. risk from the CT scan is higher
C. risk from both examinations is the same
D. risks cannot be compared because they are different imaging modalities

Answer 22

A

Question 23

you are unsure of the location of an opaque mass seen over a molar root on a periapical view. a second view of the same region, made with the x-ray machine oriented more from the mesial, reveals that the object has moved mesially with respect to the molar roots on the first view. the location of the object is ___.
A. buccal to the roots
B. lingual to the roots
C. in the same plane as the roots
D. unknown because information is insufficient to form an opinion

Answer 23

B

Question 24

cone-cutting results from \_\_\_.
A. too great a target-film distance
B. not selecting the proper kVp 
C. not enough time exposure
D. x-ray machine is improperly aimed

Answer 24

D

Question 25

if your film-based radiographs start coming out too light, it may be that \_\_\_.
A. exposure time is too long
B. developer needs changing
C. developer is too hot
D. fixer needs changing
E. films are not sufficiently washed

Answer 25

B

Question 26

if an unwrapped, nonprocessed x-ray film is exposed to normal light for just a second and then processed, it ___.
A. may still be used but will be a little dark
B. may still be used but will be a little light
C. may still be used but will be brown
D. will be completely black
E. will be completely clear

Answer 26

D

Question 27

to ensure high radiographic image quality, it is important to ___ daily.
A. check the temperature of the processing solutions
B. clean the processing equipment
C. clean the intensifying screens
D. calibrate the mA linearity

Answer 27

A

Question 28

radiographs of a pregnant patient ___.
A. should never be made
B. should be made only in the third trimester of pregnancy
C. should be made only with triple leaded aprons on the patients lap
D. should be made when there is a specific need

Answer 28

D

Question 29

radiographic examination plays an important role in assessing periodontal disease. intraoral radiographs permit assessment of several disease features related to periodontal disease. which of the 2 features from the following list cannot be assessed by radiographic examination?
A. bone loss in the furcation areas
B. amount of bone present
C. crown-to-root ratio
D. depth of the soft tissue pocket
E. assessment of the 3-D nature of the vertical periodontal defect

Answer 29

D, E