Head slow, limb rapid, 4” & 5lbs(muscle bulk & calcification) / year
Describe the craniofacial growth changes.
Remodeling of cranial vault bones (increased size apposition at sutures)
Ossification of synchondroses in cranial base
Describe the maxillary and mandibular changes (3-6).
Maxilla apposition in up & back direction(superior & posterior sutures) leading to down and forward displacement /translation. Anterior maxilla resporbtion. Apposition on palatal and resporption on nasal, net downward translation
Mandible, remodeling throughout, resorption on anterior ramus, apposition on posterior, net translation down & forward.
What age does relative growth of face & cranium diverge?
Around 5, more facial changes after.
What is the relation of max and mandible from 3-6 from scammon’s curve?
Max still ahead, mandible S flattens after 6
Where does most growth from 3-6 occur in facial diagrams?
Vertical vs. transverse
Mandible/facial vs cranial
What is early mesial shift?
Closing of interproximal space of primary dentition on eruption of first permanent molars. -> bitewings may be necessary