The document discusses the growth and development of the mandible from prenatal to postnatal stages. It describes how the mandible develops from neural crest cells and the main sites of growth, including the condylar cartilage, rami, alveolar processes, and symphysis menti. The condylar cartilage contributes to overall mandibular length through endochondral bone formation, though its role as the primary growth center is debated. Other factors like muscles and biomechanical forces also influence mandibular positioning and shape. Growth patterns vary during development and puberty, with growth spurts typically occurring earlier in girls. Certain anomalies can also affect mandibular development.