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: Desquamative gingivitis is commonly seen in
A) Erythema multiforme
B) Leukoplakia
C) Lichen planus
D) Chronic periodontitis
✅ Correct Answer: C
Explanation: Lichen planus, mucous membrane pemphigoid, and pemphigus vulgaris can all present with desquamative gingivitis.
Q: Fibroma of the oral mucosa is typically caused by
A) Chronic irritation
B) Hereditary factors
C) Viral infection
D) Autoimmune reaction
✅ Correct Answer: A
Explanation: Fibromas are reactive lesions due to chronic mechanical irritation, not true neoplasms.
Q: Plasma cells in multiple myeloma secrete
A) Calcitonin
B) Collagen
C) Immunoglobulins
D) Prostaglandins
✅ Correct Answer: C
Explanation: Multiple myeloma involves malignant plasma cells producing excessive amounts of monoclonal immunoglobulins.
Q: Lips appear dry and fissured in deficiency of
A) Vitamin A
B) Vitamin B2
C) Vitamin D
D) Vitamin B1
✅ Correct Answer: B
Explanation: Riboflavin (B2) deficiency leads to angular cheilitis, glossitis, and fissured lips.
Q: Moth-eaten radiolucency in the jaw is commonly seen in
A) Stafne defect
B) Fibrous dysplasia
C) Odontoma
D) Langerhans cell histiocytosis
✅ Correct Answer: D
Explanation: Langerhans cell histiocytosis often presents with punched-out or moth-eaten radiolucent bone lesions.
Q: A common benign pigmented lesion of the oral cavity is
A) Melanoma
B) Hemangioma
C) Oral papilloma
D) Melanotic macule
✅ Correct Answer: D
Explanation: Melanotic macules are flat, brown, asymptomatic lesions frequently found on the lip or gingiva.
Q: The most frequent site for odontogenic keratocyst is the
A) Mandibular ramus
B) Maxillary tuberosity
C) Maxillary premolar area
D) Mandibular anterior region
✅ Correct Answer: A
Explanation: Odontogenic keratocysts are aggressive and often arise in the posterior mandible and ramus region.
Q: Aspirin burn on oral mucosa causes
A) Vesicular eruption
B) Erythematous macule
C) Necrotic white slough
D) Petechiae
✅ Correct Answer: C
Explanation: Direct contact of aspirin on mucosa results in coagulative necrosis, leading to a white, sloughing lesion.
Q: Eosinophilic granuloma is the localized form of
A) Tuberculosis
B) Langerhans cell disease
C) Sarcoidosis
D) Actinomycosis
✅ Correct Answer: B
Explanation: Eosinophilic granuloma is a localized variant of Langerhans cell histiocytosis affecting bones including the jaws.
Q: Cobblestone appearance of the oral mucosa is observed in
A) Lichen planus
B) Lupus erythematosus
C) Pemphigus vulgaris
D) Crohn's disease
✅ Correct Answer: D
Explanation: Crohn’s disease may affect the oral mucosa, producing a cobblestone or nodular appearance due to granulomatous inflammation.