Mandibular Growth Centre — NDEB AFK MCQ
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Correct answer: E — Condylar cartilage
The condylar cartilage is the primary growth centre of the mandible. Unlike most growth cartilages, it is secondary cartilage (formed from periosteum) rather than primary cartilage (from a cartilage model). Growth at the condyle contributes to the length and height of the ramus and positions the mandibular body anteriorly and inferiorly. This is the target of functional appliance therapy (twin block, Herbst), which aims to stimulate condylar growth in Class II patients during the pubertal growth spurt.
Reference: Proffit – Contemporary Orthodontics, 6th ed., 2019