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: Actinomycosis of the jaw is commonly associated with
A) Caseating granulomas
B) Sulfur granules in pus
C) Viral inclusions
D) Fungal spores in tissue
✅ Correct Answer: B
Explanation: Actinomycosis often produces purulent discharge containing yellowish sulfur granules.
Q: Epulis fissuratum results from
A) Vitamin deficiency
B) Trauma from ill-fitting denture
C) Viral infection
D) Salivary duct obstruction
✅ Correct Answer: B
Explanation: Epulis fissuratum is a reactive fibrous hyperplasia caused by chronic denture irritation.
Q: Ghost cells are a hallmark of
A) Dentigerous cyst
B) Nasopalatine cyst
C) Ameloblastoma
D) Calcifying odontogenic cyst
✅ Correct Answer: D
Explanation: Calcifying odontogenic cysts exhibit ghost cells, which are eosinophilic, anucleated epithelial cells.
Q: Scurvy leads to oral manifestations primarily due to
A) Lipid metabolism errors
B) Enamel hypoplasia
C) Salivary gland dysfunction
D) Collagen deficiency
✅ Correct Answer: D
Explanation: Vitamin C deficiency impairs collagen synthesis, resulting in gingival bleeding and poor wound healing.
Q: Radiolucency with a sclerotic border in the mandible is typical of
A) Periapical cyst
B) Dentigerous cyst
C) Residual cyst
D) Stafne bone defect
✅ Correct Answer: D
Explanation: Stafne bone defect presents as a well-defined radiolucency below the mandibular canal, often asymptomatic.
Q: Oncocytoma is a benign tumor of the
A) Salivary gland
B) Bone
C) Odontogenic epithelium
D) Periodontium
✅ Correct Answer: A
Explanation: Oncocytomas arise from salivary gland tissue and contain cells with abundant granular eosinophilic cytoplasm.
Q: The classic triad of Melkersson-Rosenthal syndrome includes facial paralysis, fissured tongue, and
A) Xerostomia
B) Lip pigmentation
C) Gingival hyperplasia
D) Facial swelling
✅ Correct Answer: D
Explanation: Melkersson-Rosenthal syndrome is characterized by recurrent facial swelling, facial nerve palsy, and fissured tongue.
Q: The causative agent of oral thrush is
A) Cryptococcus neoformans
B) Candida albicans
C) Histoplasma capsulatum
D) Aspergillus fumigatus
✅ Correct Answer: B
Explanation: Oral thrush is a candidal infection typically seen in immunocompromised or antibiotic-treated patients.
Q: The initial lesion of syphilis is a
A) Papule
B) Chancre
C) Gumma
D) Mucous patch
✅ Correct Answer: B
Explanation: A chancre is the first lesion in primary syphilis and is painless with a firm, indurated border.
Q: Radiographic "sunburst" appearance is associated with
A) Osteosarcoma
B) Central giant cell granuloma
C) Ossifying fibroma
D) Ameloblastoma
✅ Correct Answer: A
Explanation: Osteosarcoma of the jaw may present radiographically with a sunburst or spiculated periosteal reaction.