Oral Pathology MCQs
Oral Pathology MCQs cover the diseases affecting the oral cavity, including tumors, precancerous conditions, cysts, and inflammatory diseases. These quizzes help students of BDS and MDCAT assess their ability to diagnose and understand oral conditions and prepare for clinical scenarios.
Q: Leukoplakia is best described as
A) Pigmented lesion
B) Vesicle on the palate
C) White patch that cannot be wiped off
D) Painful red ulcer
✅ Correct Answer: C
Explanation: Leukoplakia appears as a white plaque that cannot be scraped off and has no specific histology.
Q: Oral submucous fibrosis is commonly associated with
A) Smoking
B) Vitamin D deficiency
C) Betel nut chewing
D) Alcohol abuse
✅ Correct Answer: C
Explanation: Areca nut (betel nut) use is a primary etiological factor in the development of oral submucous fibrosis.
Q: The most common site for oral squamous cell carcinoma is
A) Floor of the mouth
B) Dorsum of the tongue
C) Buccal mucosa
D) Hard palate
✅ Correct Answer: A
Explanation: The floor of the mouth and lateral tongue are high-risk zones for squamous cell carcinoma.
Q: Acantholysis refers to
A) Separation of epithelial cells
B) Necrosis of muscle fibers
C) Inflammation of salivary glands
D) Loss of melanin
✅ Correct Answer: A
Explanation: Acantholysis is the breakdown of intercellular connections between epithelial cells, commonly seen in pemphigus vulgaris.
Q: Primary herpes infection in children is known as
A) Herpangina
B) Primary herpetic gingivostomatitis
C) Recurrent aphthous ulcer
D) Oral candidiasis
✅ Correct Answer: B
Explanation: Primary herpetic gingivostomatitis is the initial presentation of herpes simplex infection in children.
Q: Mucocele formation results from
A) Allergic response
B) Rupture of minor salivary gland duct
C) Infected apical tooth
D) Trauma to gingiva
✅ Correct Answer: B
Explanation: A mucocele is caused by extravasation of mucus following trauma to a salivary gland duct.
Q: The causative organism in syphilitic oral lesions is
A) Treponema pallidum
B) Candida albicans
C) Herpes simplex virus
D) Epstein-Barr virus
✅ Correct Answer: A
Explanation: Syphilis is caused by the spirochete Treponema pallidum, and it may present with oral chancres or mucous patches.
Q: The most common fungal infection of the oral cavity is
A) Aspergillosis
B) Candidiasis
C) Histoplasmosis
D) Cryptococcosis
✅ Correct Answer: B
Explanation: Candidiasis, particularly caused by Candida albicans, is the most frequent fungal infection in the oral region.
Q: Hairy leukoplakia appears predominantly on the
A) Lateral tongue
B) Palate
C) Gingiva
D) Floor of the mouth
✅ Correct Answer: A
Explanation: Hairy leukoplakia presents as a white, corrugated lesion on the lateral border of the tongue, often in immunocompromised patients.
Q: The oral manifestation of measles includes
A) Koplik spots
B) White patches
C) Ulcerated nodules
D) Pigmented macules
✅ Correct Answer: A
Explanation: Koplik spots are small white lesions on the buccal mucosa, pathognomonic for measles.