All Free Oral Pathology and Medicine MCQs with Answers

• A. Neonatal hypoplasia
• B. Amelogenesis imperfecta
• C. Dentinogenesis imperfecta
• D. Cleidocranial dysplasia

Explanation: Dentinogenesis imperfecta produces opalescent gray or brown teeth, rapid wear, and radiographically large amounts of abnormal or…

• A. Maxilla
• B. Mandible
• C. Cranium
• D. Alveolar bone

Explanation: Teeth stimulate development and maintenance of the alveolar process, so complete absence of teeth leads to marked underdevelopment of…

• A. Elongated wide pulp canals and short roots
• B. Hypercementosis
• C. Obliterated pulp chambers with secondary dentine deposition
• D. Rootless teeth with thin shell of enamel

Explanation: Taurodontism is defined by an enlarged, vertically elongated pulp chamber with apically displaced furcation and relatively short roots.

• A. Reiter's
• B. Peutz - jeghers
• C. Gardner's
• D. Behcet's

Explanation: Gardner syndrome combines familial adenomatous polyposis with multiple osteomas, epidermoid cysts and dental anomalies such as impacted or…

• A. amelogenesis imperfecta
• B. Osteitis deformans
• C. Odontodysplasia
• D. dentinogenesis imperfecta

Explanation: Dentinogenesis imperfecta may occur with osteogenesis imperfecta, a disorder of defective bone formation, and produces opalescent, weak…

• A. Autosomal dominant
• B. Autosomal recessive
• C. Se* linked recessive
• D. Not a inheritable trait

Explanation: The classic hereditary form of dentinogenesis imperfecta follows an autosomal-dominant pattern, so affected individuals commonly have the…

• A. Osteomas
• B. Osteosarcoma
• C. Epidermoid cysts
• D. Impacted permanent teeth

Explanation: Gardner syndrome characteristically includes osteomas, epidermoid cysts and impacted or supernumerary teeth, along with intestinal…

• A. Papillion levefre syndrome
• B. Ectodermal dysplasia
• C. Cleidocranialdysostosis
• D. Osteopetrosis

Explanation: Osteopetrosis mainly causes dense bone, delayed eruption, and impaction rather than true hypodontia.

• A. Hemifacial hypertrophy
• B. Crouzan syndrome
• C. Cherubism
• D. Achondroplasia

Explanation: Hemifacial hypertrophy produces unilateral enlargement of facial bones and teeth, often with differences in crown and root size and…

• A. Increase osteoclastic activity
• B. Polymerisation of collagen
• C. Improper synthesis of procollagen
• D. Increase fibroblastic activity

Explanation: Brittle bone syndrome, or osteogenesis imperfecta, results from defective type I collagen production, commonly involving abnormal…

• A. Turner syndrome
• B. Sturge weber syndrome
• C. Down syndrome
• D. Klinefelter's syndrome

Explanation: Taurodontism is a recognised dental finding in Klinefelter syndrome, with enlarged pulp chambers and apically displaced furcations.

• A. Multiple intestional polyps
• B. Multiple supernumerary teeth
• C. Deafness
• D. scleroderma

Explanation: Peutz-Jeghers syndrome is characterized by mucocutaneous pigmentation and multiple hamartomatous intestinal polyps.

• A. Severe flurosis
• B. congenital syphilis
• C. Trauma at the time of birth
• D. Due to chronic suppurative abscess in over lying gingival tissue

Explanation: Mulberry molars are poorly formed, rounded permanent first molars classically associated with congenital syphilis.

• A. Secondary syphilis
• B. Tertiary syphilis
• C. congenital syphilis
• D. Acquired syphilis

Explanation: Hutchinson incisors are notched, screwdriver-shaped permanent incisors caused by congenital syphilis.

• A. Rickets
• B. cherubism
• C. Cleidocranial dysplasia
• D. Congenital hyperthyroidism

Explanation: Rickets, cleidocranial dysplasia and cherubism can delay eruption, whereas congenital hyperthyroidism is associated with accelerated…

• A. PierreRobin syndrome
• B. Crouzon's syndrome
• C. Paget's disease
• D. Marfan's syndrome

Explanation: Pierre Robin sequence is classically associated with the triad of micrognathia, glossoptosis, and cleft palate.

• A. Congenital syphilis
• B. Anhidrotic ectodermal dysplasia
• C. Rickets
• D. Supernumerary teeth

Explanation: Rickets mainly causes defective enamel formation, hypoplasia and delayed eruption rather than typically peg-shaped incisors.

• A. Exophytic oral Hemangioma
• B. Facial hemangioma
• C. Tramline calcification of dura on lateral cephalogram
• D. Facial hematoma

Explanation: Sturge-Weber syndrome features a facial port-wine vascular malformation, possible oral hemangiomas, and intracranial tram-track…

• A. Plasmacytoma
• B. Multiple myeloma
• C. Burkitt's lymphoma
• D. None of the above
• E. Both A & B

Explanation: Plasmacytoma is a localized plasma-cell neoplasm, whereas multiple myeloma is a disseminated plasma-cell malignancy involving bone marrow…

• A. Chronic smokers
• B. Gluten enteropathy
• C. Excess of B-complex
• D. Anti-malarial medication

Explanation: Recurrent aphthous-like ulceration is associated with gluten-sensitive enteropathy, probably through nutritional deficiency or immune…