Ortho Flashcards
Dolichocephaly vs Brachycephaly
Dolichocephaly: head is longer than would be expected
Brachycephaly: skull shorter than typical for its species
wiki
Growth of mandible:
Endochondral
intramembranous
both
Growth of the mandible is both endochondral and intramembranous (mosby)
Which tissue show most growth in first 6 years and then plateaus? lymph, neural,
genital
neural
wrist radiograph vs ceph
wrist: Used in PREDICTING the time of the pubertal growth spurt because physical maturity and skeletal development correlates well with jaw growth.
ceph: Can be used to evaluate whether growth has stopped or is continuing
(FA)
What is the best revealing tool for prediction about ossification?
prediction = wrist radiograph
FA
Eruption sequence of peds in order
central - lateral - 1M - K9 - 2M
Frankl Behavior Rating Scale
1 is (--) 2 is (-) 3 is (+) 4 is (++)
most stable and most unstable ortho surgeries
Most to least stable: max up > mand forw > chin any direction … > mand back > max down > max wider
class II div 1 and 2
FA121
Class II, Division 1: Maxillary incisors (centrals and laterals) in extreme labioversion (protruded).
■ Class II, Division 2: Maxillary centrals tipped palatally and in a retruded position (linguoversion). The maxillary laterals are typically tipped labially and mesially.
what type of malocclusion is most common?
Class I, II, III
class I (crowding) (lec)
what percent have normal class I occlusion
30%
lec
most common patients to have anterior tooth fractures? Class I Class II div 1 Class II div 2 Class 3
Class II div 1
leeway space vs e-space
Leeway space: The space difference between primary canine, first & second molar and the succedaneous teeth
e-space: space difference btwn primary 2nd molar and the succedaneous tooth
Moyers mixed dentition analysis
Measure total width of permanent mandibular incisors, use table to predict width of permanent canines and premolars
(lec)
tanaka/johnson
One half the width of permanent mandibular incisors + 10.5 mm = estimated width of mandibular canines and premolars in one quadrant
One half the width of permanent mandibular incisors + 11.0 mm = estimated width of maxillary canines and premolars in one quadrant
