Pediatric Dentistry · single question
What is NOT true about cleft palate?
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Correct answer: B. Micrognathia
✓ B) Micrognathia is NOT typically associated with isolated cleft palate.
Cleft palate associated findings include: hypodontia (missing teeth), supernumerary teeth, ectopic tooth eruption, anterior crossbite, dental crowding, and feeding difficulties. Micrognathia (small lower jaw) is specifically associated with Pierre Robin Sequence (cleft palate + micrognathia + glossoptosis), not isolated cleft palate. Pierre Robin sequence is a separate entity where mandibular hypoplasia precedes the palatal cleft.
Cleft palate associated findings include: hypodontia (missing teeth), supernumerary teeth, ectopic tooth eruption, anterior crossbite, dental crowding, and feeding difficulties. Micrognathia (small lower jaw) is specifically associated with Pierre Robin Sequence (cleft palate + micrognathia + glossoptosis), not isolated cleft palate. Pierre Robin sequence is a separate entity where mandibular hypoplasia precedes the palatal cleft.
- A. MICROGNATHIA (abnormally small mandible) is NOT a characteristic feature of isolated cleft palate. Micrognathia is associated with PIERRE ROBIN SEQUENCE (retrognathia + glossoptosis + airway obstruction) and other syndromes, but not with typical isolated cleft palate. Cleft palate is associated with: missing/malposed teeth, hypernasality, otitis media, hearing problems, and speech difficulties.
- B. Ectopic eruption of teeth adjacent to the cleft IS a common finding in cleft palate/lip patients. This IS true.
- C. Missing teeth ARE associated with cleft palate/lip — teeth adjacent to the cleft (especially lateral incisors and canines) are frequently missing or malformed. This IS true.
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