Free Odontogenic Cysts and Tumours MCQs with Answers
129 Odontogenic Cysts and Tumours MCQs from Oral Pathology and Medicine, each with the correct answer and a written explanation of why it is correct. Free and unlimited, with no account needed.
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- A. Hypothyroidism
- B. Cherubism
- C. Hyperparathyroidism
- D. Paget's disease
Explanation: Cherubism is a familial jaw bone disorder in which serum calcium, phosphate and alkaline phosphatase are usually normal.
Correct answer: Cherubism- A. surgical excision
- B. radiation
- C. cosmetic surgery after puberty
- D. Enbloc dissection
Explanation: Cherubism often stabilises or regresses after puberty, so treatment in children is usually observation.
Correct answer: cosmetic surgery after puberty- A. Cherubism
- B. Monostotic fibrous dysplasia
- C. Ployostotic fibrous dysplasia
- D. Central giant cell granuloma
Explanation: Cherubism typically begins in early childhood and causes painless, bilateral expansion of the posterior mandible, giving a rounded facial…
Correct answer: Cherubism- A. Osteogenesis imperfecta
- B. Cleidocranial dysostosis
- C. Fibrous dysplasia
- D. Osteopetrosis
Explanation: Cleidocranial dysostosis is characterized by hypoplastic or absent clavicles, allowing the shoulders to be approximated in front of the…
Correct answer: Cleidocranial dysostosis- A. Infection of Salivary gland in the mandible
- B. Tissue of the odontogenic apparatus
- C. None of the above
- D. Tissue of the oral mucosa
Explanation: A static bone cyst, or Stafne bone defect, is a developmental lingual depression of the mandible that commonly contains salivary gland…
Correct answer: None of the above- A. Dilaceration
- B. Concrescence
- C. Gemination
- D. Fusion
Explanation: Fusion occurs when two developing tooth germs unite, usually producing a reduced tooth count and a large bifid crown.
Correct answer: Fusion- A. Globulomaxillary cyst
- B. Naso-alveolar cyst
- C. Naso palatine cyst
- D. Mid palatine cyst
Explanation: The globulomaxillary cyst was classically described in the developmental suture between the globular, lateral nasal, and maxillary…
Correct answer: Globulomaxillary cyst- A. Globulomaxillary cyst
- B. Median palatine cyst
- C. Nasoalveolar cyst
- D. Nasopalatine cyst
Explanation: A nasoalveolar cyst is classically attributed to epithelial remnants at the junction of the medial and lateral nasal processes with the…
Correct answer: Nasoalveolar cyst- A. Gemination
- B. Twinning
- C. Concrescence
- D. Fusion
Explanation: Fusion is the union of two developing tooth germs, with dentin becoming continuous between them.
Correct answer: Fusion- A. Mandibular first molar
- B. Incisor with talon/cusp
- C. Mesiodens
- D. Maxillary premolars
Explanation: Taurodontism is characterized by an enlarged, elongated pulp chamber and apically displaced furcation, most often affecting permanent…
Correct answer: Mandibular first molar- A. Shell teeth
- B. Dentinogenesis imperfecta
- C. Dentin Dysplasia
- D. Tauradontisam
Explanation: Shell teeth, taurodontism, and some forms of dentin dysplasia can show unusually large pulp spaces.
Correct answer: Dentinogenesis imperfecta- A. Homozygous
- B. Recessive
- C. Autosomal dominant
- D. X-linked recessive
Explanation: Most dentinogenesis imperfecta cases are caused by mutations in DSPP and are inherited as autosomal dominant traits.
Correct answer: Autosomal dominant- A. Maxi. central incisor
- B. Mandibular canine
- C. Maxillary first premolar
- D. Mand. second premolar
Explanation: The mandibular second premolar is the permanent tooth most commonly congenitally absent after third molars.
Correct answer: Mand. second premolar- A. Odontoma
- B. Myxoma
- C. Boney cyst
- D. Torus palatinus
Explanation: A torus palatinus is a benign, dense bony exostosis along the midline of the hard palate, so it appears radiopaque and is usually…
Correct answer: Torus palatinus- A. Rickets
- B. Cleidocranial dysostosis
- C. Congenital syphilis
- D. Fluoride
Explanation: Rickets, excess fluoride, and congenital syphilis are established causes of defective enamel formation.
Correct answer: Cleidocranial dysostosis- A. Mesiodens
- B. Distal to mandibular 3rd molar
- C. Distal to 3rd molar in maxilla
- D. Para molars
Explanation: After mesiodens, the next most common supernumerary tooth is usually a distomolar, also called a fourth molar, located distal to a…
Correct answer: Distal to 3rd molar in maxilla- A. Dentigerous cyst
- B. Primordial cyst
- C. Radicular cyst
- D. Nasopalatine cyst
Explanation: A fissural or developmental nonodontogenic cyst classically includes the nasopalatine cyst, which forms from epithelial remnants in the…
Correct answer: Nasopalatine cyst- A. Remnants of cell rests of embryonic lacrimalduct
- B. Remnants of cell rests of mallasez
- C. Remnants of cell rests of serrae
- D. Maxillary sinus lining epithelium
Explanation: Nasolabial cysts are developmental non-odontogenic cysts believed to arise from epithelial remnants of the nasolacrimal duct.
Correct answer: Remnants of cell rests of embryonic lacrimalduct- A. Tuberculated
- B. Conical
- C. Screw shaped
- D. Incisor shaped
Explanation: The conical form is the commonest type of supernumerary tooth, especially among supplemental teeth such as mesiodentes.
Correct answer: Conical- A. Craniofacial dysostosis
- B. Amelogenesis imperfecta
- C. Dentinogenesis imperfecta
- D. None of the above
Explanation: Dentinogenesis imperfecta commonly causes early narrowing or complete obliteration of the pulp chambers because abnormal dentin continues…
Correct answer: Dentinogenesis imperfecta