Oral Pathology
Hypodontia is associated with which syndrome?
A. Ectodermal dysplasia syndromes
B. Ehlers- Danlos syndrome
C. Down syndrome
D. all of the above
D. all of the above
Your patient complains to you that his gums bleed when he brushes and flosses in the spot where he got a new filling. You suspect an amalgam overhang. Which of the following would best assist the operator in detecting such an overhang?
A. an explorer
B. floss
C. A Williams periodontal probe
D. using the mirror for transillumination
A. an explorer
Posterior 1/2 of the tongue drains into:
A. submental nodes
B. submandibular nodes
C. occipital nodes
D. facial nodes
E. deep cervical nodes
E. deep cervical nodes
Which type of digital image receptor is most common at this time?
A. CID
B. CMOS/APS
C. CCD
C. CCD (charge-coupled device)
Non-essential amino acids are those that:
A. must be obtained from dietary sources
B. can be converted from other body compounds
C. both of the above
D. neither of the above
B. can be converted from other body compounds
A patient presents to the dermatologist with light brown birthmark-like spots on his back. A thorough scan reveals freckles in his armpits and pigmented lesions with the iris. Intraorally, this patient has multiple lesions on the gingiva and alveolus. What is the most likely diagnosis of these oral lesions?
A. neurilemmoma
B. neurofibroma
C. neuroma
D. fibroma
B. neurofibroma
Which of the following cements is best prepared by mixing on a cool glass slab?
A. zinc phospate
B. zinc polycarboxylate
C. glass ionomer
D. zinc oxide-eugenol (ZOE)
A. zinc phospate
Which of the following anatomical structures is not present on the external surface of the mandible?
A. mental spine
B. mental foramen
C. oblique line
D. symphysis menti
A. mental spine
Black branching lines appear on a processed film. Which of the following is the most likely cause?
A. air bubble
B. fingernail artifact
C. scratched film
D. static electricity
D. static electricity
Which of the following hormones is released to correct a hyperglycemic state?
A. insulin
B. testosterone
C. glycogen
D. estrogen
E. glucagon
A. insulin
The most acute and severe type of hyperthyroidism is:
A. Toxic nodular goiter
B. Grave's disease
C. Hashimoto's disease
D. Addison disease
B. Grave's disease
A 17-year-old female patient who is a heavy soda drinker and has multiple inter proximal carious lesions is concerned about how her fillings will look. She would like to have all her posterior restorations done in composite. The most serious limitation of the visible light-cured posterior composite restoration is:
A. esthetics
B. polymerization shrinkage
C. its biocompatibility
D. that it will tarnish
B. polymerization shrinkage
If the palatal mucosa opposite to the maxillary first molar was lacerated and bleeding occurred, which of the following arteries is most likely to be involved?
A. descending palatine artery
B. middle superior alveolar artery
C. greater palatine artery
D. posterior superior alveolar artery
C. greater palatine artery
Which of the following is used to compare the biological effects of different types of radiation on a tissue or organ?
A. exposure
B. absorbed dose
C. effective dose
D. equivalent (radiation-weighted) dose
E. radioactivity
D. equivalent (radiation-weighted) dose
All of the following contain cholesterol EXCEPT one. Which one is the EXCEPTION?
A. cheddar cheese
B. sirloin steak
C. butter
D. corn oil
E. eggs
D. corn oil
The keratocystic odontogenic tumor (KOT) (formerly known as the odontogenic keratocyst (OKC) is derived from which of the following:
A. Hertwig's epithelial root sheath
B. the reduced enamel epithelium
C. remnants of the dental lamina
D. a preexisting osteoma
C. remnants of the dental lamina
A. interferes with plaque formation on teeth
B. has antibacterial qualities
C. promotes glycolysis
D. remineralization is enhanced
E. decreased enamel solubility
C. promotes glycolysis
Which of the following cranial nerves is the only nerve that emerges from the dorsal aspect of the brainstem?
A. trochlear nerve (CN IV)
B. abducens nerve (CN VI)
C. oculomotor nerve (CN III)
D. optic nerve (CN II)
A. trochlear nerve (CN IV)
A periodical image shows stretched and elongated maxillary central incisors. Which of the following is the likely cause?
A. vertical angulation is excessive/too steep
B. vertical angulation is insufficient/too flat
C. incorrect horizontal angulation
D. any of the above
B. vertical angulation is insufficient/too flat
Caffeine is a widely used food additive. It belongs to which drug category below?
A. phenothiazine
B. barbiturate
C. narcotic analgesic
D. methylxanthine
D. methylxanthine
A mass of histologically normal tissue is an abnormal location is referred to as a:
A. teratoma
B. choristoma
C. hamartoma
D. none of the above
B. choristoma
If a sealant inadvertently seals a small carious lesion, the most likely result is:
A. decay progressing at a normal rate under the sealant
B. carious lesion becomes arrested
C. decay progresses much less rapidly under the sealant
D. sealant will fall off
B. carious lesion becomes arrested
Failure of fusion of which of the following will lead to cleft lip?
A. frontonasal process; lateral nasal process
B. maxillary process; lateral nasal process
C. lateral nasal process; medial nasal process
D. maxillary process; medial nasal process
D. maxillary process; medial nasal process
The purpose and use of the panoramic image include all of the following EXCEPT one. Which one is the EXCEPTION?
A. to evaluate impacted teeth
B. to evaluate growth and development
C. to evaluate and diagnose caries
D. to examine the extent of large lesions
E. to evaluate trauma
C. to evaluate and diagnose caries
A patient comes in the ER with a history of diarrhea, rash and is not coherent. Diarrhea, dermatitis and dementia characterize pellagra which is a deficiency of:
A. pyridoxine (B6)
B. niacin (B3)
C. cobalamin (B12)
D. retinol (vitamin A)
B. niacin (B3)