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robbypowell's version from 2018-09-10 12:20

GSO Analysis Norms

Question Answer
SNA82 (deg) (Sella - Nasion - A Point)
SNB80 (deg) (Sella - Nasion - B Point)
ANB2 (deg) (A point - Nasion - B point)
SN-MP32 (deg) (SellaNasion - Mandibular Plane)
FMA25 (deg) (Frankfort Horizontal - Mandibular Plane)
S-N (mm)66 (Sella - Nasion)
FH-SN7 (deg) (Frankfort Horizontal - SellaNasion)
Y Axis (SGn-SN)66 (deg)
PP-MP23 (deg) (Palatal Plane - Mandibular Plane)
Wits (mm)-1 (mm) (Witts Analysis)
U1-NA (deg/mm)22/4 (mm)
U1-SN102 (deg) (U incisor - Sella - Nasion)
U1-PP110 (deg) (U incisor - palatal plane)
L1-NB (deg/mm)25/4 (deg/mm) (L incisor - nasion - B point)...( mm farthest perperndicular to NB)
L1-MP90 (deg)
L1-FH65 (deg)
U1-L1130 (deg)
U Lip - E Plane-4 (mm)
L Lip - E Plane-2 (mm)
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Section

Question Answer
____ usually refers to an increase in size or numberGrowth
Development almost always refers to an increase in complexity, specialization, and loss of potentialDifferentiation
_____, as a type of information, is regarded as being the best/pinnacleMeta-Analysis (or review article)
T/F: long term studies have found there no indication that orthodontic treatment increased or decreased the chance of later periodontal problems.True (Jonsson, T)
T/F: long term studies have confirmed that orthodontic treatment increased or decreased the chance of later periodontal problems.False (Jonsson, T) (long term studies found NO indication that ortho tx increased perio problems)
T/F: The evidence that ortho affects later dental outcomes is unclear.True
_____ is largely an anatomic phenomenon, whereas ________ is also physiological and behavioralGrowth, Development
Pattern reflects proportionality... and has to do with changing proportionality over time... this is more related to (growth/development)Growth
term: axis of increased growth extending from cranial base towards feetCephalocaudal gradient of growth
at 2 months the ratio of cranium to total body size is ____ while as an adult the ratio is ____50%, 12%
t/f: all tissue systems of body grow at the same rate over the course of maturationFalse
what is the first growth curve to reach max growth velocityNeural
what is the first growth curve to reach 100% of adult sizeLymphoid (although it is not its complete growth as it gets larger than adult size and then diminishes)
which more closely follows the neural growth curve (max/man)Max
which more closely follows the general growth curve (max/man)Man
when does menarche occur relative to peak growth velocity? (before, during, after)After (by a year or two?) (growth IS still occurring... just not at the fastest rate)
____ are studies done on measurments of skulls found amoung human skeletal remainsCraniometry
Measuring skeletal dimensons on LIVING individuals using soft tissue measurementsAnthropometry
Radioactive tracers: such as ________ can be used to detect areas of rapid bone growth in humans (e.g. condylar hypertrophy).Technetium
______ tracers such as Technetium can be used to detect areas of rapid bone growth in humans (e.g. condylar hypertrophy).Radioactive
Radioactive tracers such as Technetium can be used to detect condylar ______condylar HYPERTROPHY (areas of rapid bone growth)
homeobox Msx genes are expressed differently in the mandible such that Msx1 --> _____ bone and Msx2 --> ____ bonebasal, alveolar
decreased hedgehog pathway activity causes what craniofacial effect?Holoprosencephaly (failure of the nose to develop) and Hypo-telorism
Excessive hedgehod pathway activity causes what craniofacial effects?(Truncating primary cilia on cranial neural crest cells) causes hypertelorism and frontonasal dysplasia
Chromosomal Loci have been found with Class ____ malocclusionClass 3 (there has been a genetic component found... may or may not be the cause)
___'s (fraction) of genome play a role in craniofacial development2/3's (of 25,000)
_____ is an increase in cell sizehypertophy
______ is an increase in cell #Hyperplasia
what type of bone growth is associated with condylar growth of the mandibleEndochondral (cartilage --> bone)
t/f: cartilage of the condyle behaves like an epiphyseal plateFalse
t/f: cartilage of condyle does not behave like an epiphyseal plateTrue
______ ossification is secreted directly within connective tissue w/o formation of cartilageintramembraneous (e.g. cranial vault, maxilla, mandible except for condyle)
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