growth predictions

Question 1

best growth predictors

Answer 1

• Mandibular plane angle: it tends to stay stable throughout life
• Y axis

Question 2

consistency of pt growth patterns

Answer 2

tend to stay constant, most easily predicted with normocephalic pts
becomes less predictable with doly/brachocephalic pts

Question 3

mandibular plane and y axis labeled

Answer 3

Question 4

cranial base angle growth variation

Answer 4

variable among pts

Question 5

potential outcomes of treatment for pts with altered MP/ y axis

Answer 5

less predictable growth patterns can lead to worsening malocclusions

Question 6

to correct class III we want to?

Answer 6

enhance max growth

Question 7

to correct class II we want to?

Answer 7

enhance man growth

Question 8

Growth spurts
male and female
useful for?
considerations

Answer 8

•Female: 10-12 years old
•Male: 12- 14 years old (until 17)
lots of growth than can help with treatment or be negative
•Timing of correction
•Length of treatment
•In order to modify growth, you must first experience growth

Question 9

Intramembranous growth targeting 
appliance name? 
mechanism?
teeth involved?
based on? 
man growth?

Answer 9

• Frankl appliance: Stimulation of periosteal growth by alteration of the neuromuscular environment. This appliance will stimulate periosteal pull and bone apposition
• Not a tooth borne appliance
• Rationale based on the functional matrix- targets epigenentics
• Some mandibular repositioning (stimulation of growth site)

Question 10

device to target sutural growth

Answer 10

maxillary expansion device

Question 11

maxillary sutural device
max amount
amount per day
when used?

Answer 11

will expand maxilla in lateral directions to correct crossbite
max: 6mm
.25mm a day
used to correct crossbite at young age

Question 12

most valuable orthodontic intervention?

Answer 12

GP

Question 13

Class II correction considerations
what is class II?
amount of?
potential for?

Answer 13

• True retrognatism (skeletal and genetic)
• Amount of dentoalveolar compensations
• Growth potential (growth prediction)- based on age, gender and family

Question 14

device to correct class II

Answer 14

growth restriction with head gear

Question 15

head gear mechanism

Answer 15

• Slows down growth at the tuberosity level = a Growth site
• Let the mandible “catch up” (anterior bite plane)
• Then resume normal growth pattern