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Oral Pathology for the Dental Hygienist, 7th Edition
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MULTIPLE CHOICE d
1. Which descriptive term is described as a segment that is part of the whole?
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a. Bulla
b. Vesicle
c. Lobule
d. Pustule
ANS: C d
A lobule is described as a segment or lobe that is part of a whole. A bulla is a large, elevated lesion
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that contains serous fluid and may look like a blister. A vesicle is a small, elevated lesion that
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contains serous fluid. Pustules are circumscribed elevations containing pus.
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REF: Vocabulary, Clinical of Soft Tissue Lesions, page 1
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2. A lesion with a sessile base is described as
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a. an ulcer. d
b. stemlike.
c. pedunculated.
d. flat and broad. d d
ANS: D d
Sessile describes the base of a lesion that is flat and broad. An ulcer is a break in the surface
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epithelium. A stemlike lesion is referred to as pedunculated. A pedunculated lesion is stemlike or
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stalk-based (similar to a mushroom).
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REF: Vocabulary, Clinical Appearance of Soft Tissue Lesions, page 1
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OBJ: 1
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3. Which condition is not diagnosed through clinical appearance?
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a. Mandibular tori d
b. Fordyce granules d
c. Black hairy tongue d d
d. Compound odontoma d
ANS: D d
The compound odontoma is initially identified radiographically as a radiopaque area in which
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tooth structure can be identified. No clinical component exists. Mandibular tori are identified
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clinically as areas of exostosis on the lingual aspects of mandibular premolars. Fordyce
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granules are yellow clusters of ectopic sebaceous glands diagnosed through clinical
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appearance. Black hairy tongue is diagnosed clinically. The filiform papillae on the dorsal
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tongue elongate and become brown or black. Causes include tobacco, alcohol, hydrogen
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peroxide, chemical rinses, antibiotics, and antacids.
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REF: d Radiographic Diagnosis, page 9 d d d OBJ: d d 3
4. Another name for geographic tongue is
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, a. median rhomboid glossitis. d d
b. benign migratory glossitis. d d
c. fissured tongue. d
d. black hairy tongue. d d
ANS: B d
Benign migratory glossitis is another name for geographic tongue. Research suggests that
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median rhomboid glossitis is associated with a chronic fungal infection from Candida albicans.
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Sometimes the condition resolves with antifungal therapy. Fissured tongue is seen in 5% of the
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population. It is a variant of normal. Genetic factors are typically associated with the condition.
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Black hairy tongue is caused by a reaction to chemicals, tobacco, hydrogen peroxide, or
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antacids. The filiform papillae on the dorsal tongue become elongated and are dark brown to
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black.
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REF: Geographic Tongue, page 24
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5. This bony hard structure in the midline of the hard palate is genetic in origin and inherited in an
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autosomal dominant manner. The diagnosis is made through clinical appearance. Which
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condition is suspected?
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a. Palatal cyst d
b. Torus palatinus d
c. Mixed tumor d
d. Ranula
ANS: B d
A torus palatinus is developmental and bony hard and is found on the midline of the palate.
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Diagnosis is made on the basis of clinical appearance. A palatal cyst appears radiolucent on a
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radiographic examination and is not diagnosed through clinical appearance. A mixed tumor or
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pleomorphic adenoma is a benign tumor of salivary gland origin, found unilaterally off the
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midline of the hard palate. It is composed of tumor tissue that is not bony hard to palpation.
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Ranula is a term used for a mucocele-like lesion that forms unilaterally on the floor of the mouth.
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REF: Torus Palatinus, page 21
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6. The gray-white opalescent film seen on the buccal mucosa of 85% of black adults is a variant of
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d normal that requires no treatment and is termed
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a. linea alba. d
b. leukoedema.
c. leukoplakia.
d. white sponge nevus. d d
ANS: B d
Leukoedema is a diffuse opalescence most commonly seen on the buccal mucosa in black
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individuals. Linea alba is a ―white line‖ that extends anteroposteriorly on the buccal mucosa
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along the occlusal plane. It is most prominent in patients who have a clenching or grinding
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habit. Leukoplakia is a clinical term for a white lesion, the cause of which is unknown. White
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sponge nevus is a genetic (autosomal dominant) trait. Clinically, it is characterized by a soft
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white, folded (or corrugated) oral mucosa. A thick layer of keratin produces the whitening.
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REF: Leukoedema, page 23
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, 7. Which condition most likely responds to therapeutic diagnosis?
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a. Angular cheilitis d
b. Amelogenesis imperfecta d
c. Paget disease d
d. Stafne bone cyst d d
ANS: A d
Angular cheilitis most commonly responds to antifungal therapy once nutritional deficiencies
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have been ruled out. Amelogenesis imperfecta is a genetic condition associated with abnormal
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development of the enamel. Paget disease is a chronic metabolic bone disease. A highly
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elevated serum alkaline phosphatase level contributes significantly to the diagnosis. A Stafne
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bone cyst is determined through surgical diagnosis in which entrapped salivary gland tissue is
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identified.
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REF: d Therapeutic Diagnosis, page 18 d d d OBJ: d d 3
8. The gingival enlargement in this patient was caused by a calcium channel blocker. Which
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medication is the likely cause?
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a. Dilantin
b. Nifedipine
c. Quinidine
d. Clozapine
ANS: B d
Nifedipine is a calcium channel blocker. Dilantin is an anticonvulsant used to prevent or control
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seizures. Quinidine is an antiarrhythmic agent used to treat cardiac arrhythmias. Clozapine is
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an antipsychotic used in the management of psychotic symptoms in schizophrenia.
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REF: d Historical Diagnosis, Fig. 1.38, page 17 d d d d d OBJ: d d 3
9. Radiographic features, including cotton-wool radiopacities and hypercementosis, are
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especially helpful in the diagnosis of
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a. Paget disease. d
b. dentinogenesis imperfecta. d
c. anemia.
d. diabetes.
ANS: A d
Paget disease is a chronic metabolic bone disease. Radiographically, cotton-wool radiopacities
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and hypercementosis are characteristic features. Dentinogenesis imperfecta is a genetic
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condition involving a defect in the development of dentin. Anemia, a decrease in red blood cells,
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requires blood tests to determine the etiologic factors. Diabetes is a chronic disorder of
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carbohydrate metabolism characterized by abnormally high blood glucose levels.
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REF: d Laboratory Diagnosis, Fig. 1.40, pages 16, 18 d d d d d d OBJ: d d 3
10. In internal resorption, the radiolucency seen on radiographic examination is usually
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a. well circumscribed. d
b. diffuse.