theories of craniofacial growth Flashcards
an area where growth occures
Site of growth
A site of growth that has the ability to grow on its own independently of its surrounding
Center of growth
Are all centers a growth site
Yes, but not vice versa
the way growth occures
Mode of growth
Modes of growth
endochondral ossification
Intramembraneous ossification
how growth changes occur at a higher level
Mechanisms
The cause of observed growth changes
Determinant
who popularized the suture theory of craniofacial growth
Harry Sicher
where did Dr. Sicher observe new bone forming
At the synchondrosis of the cranial base
Mandibular condyle
Sutures of the cranial and facial bones
Harry Sicher’s theory
Pressures created by formation of new bone at sites pushed the bones apart
- in the absence of cartilage, the intramembranous bones are able to determine thier own growth
what determined bone growth in suture theory
genetic info
are sutures and periosteal primary determinant of craniofacial growth
No, they are sites, not centers
what causes growth at sutures
when sutures are pulled apart, growth occurs to fill gap
what is the cartilage theory of bone growth
cartilage growth would push the bones to new positions, in response, bone would fill in at sutures and surface remodeling would occur
what did scott hypothesize about the nasal septum
The cartilaginous nasal septum served as a pacemaker for maxillary growth
