L1A Theories of Growth Flashcards

1
Q

Development

A

Increase in organization, complexity or specialization

Loss of potential

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2
Q

Gradient of growth

A

More growth toward mandible

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3
Q

Demonstrates different tissues grow at different rates

A

Scammon’s growth curve

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4
Q

Maxilla growth vs mandibular growth

A

Maxilla: follows neural
Mandible: follows general

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5
Q

Caniometry

Anthropometry

A

Measure of skull

Measure of head circumference

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6
Q

What type of growth does the cranial base exhibit

A

Interstitial growth

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7
Q

Interstitial growth steps

A
(Cartilage to cartilage)
Resting cartilage cells
Hyperplasia (prolieration)
Hypertrophy (increase size)
Secretion of ECM (NO BONE FORMATION)
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8
Q

Appositional growth steps

A
(Bone to bone)
Resting cells in periosteum
Hyperplasia
Hypertrophy
Secretion of ECM
Mineralization
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9
Q

Endochondrial growth

A

(Cartilage to bone)

Ossification of cartilage

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10
Q

Chondrochranium

A

Ethmoid
Sphenoid
Basioccipital bones

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11
Q

Desmocranium

A

Cranial vault
Maxilla
Mandible

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12
Q

Intramembranous bone formation

A

(CT to bone?)

Secretion of bone matrix between CT membranes

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13
Q

Mandible forms by

A

Intramembranous bone formation

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14
Q

Cranial vault
Type of bones
Type of formation
Growth

A

Flat bones
Intramembranous
Appositional growth

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15
Q

Most important synchondrosis

A

Spheno-ethmoidal
Inter-sphenoidal
Spheno-occipital

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16
Q

Synchondrosis vs suture

A

Cartilage vs CT
Endochondral vs Direct ossification
Active growth vs Re-active growth

17
Q

Nasomaxillary complex formed by

A

Intramembranous ossificaiton

Appositional growth

18
Q

Growth at condyles vs posterior and lateral

A

Condyle: endochondral

Posterior/lateral: Intramembranous

19
Q

Common side effects of functional appliances

A

Lower incisor proclination

Upper incisor retroclination

20
Q

Stages of distraction osteogenesis

A

Latency
Distraction
Consolidation
Remodeling (after appliance is removed)