Growth predictions Flashcards
1
Q
Best Growth “predictors” (4)
A
- Mandibular plane angle
- Y axis
- Bjork studies
- Normocephalic- Dolychocephalic patients
2
Q
Mandibular plane angle:
A
it tends to stay stable throughout life
3
Q
Bjork studies:
A
Patient tend to keep their growth pattern constant….
4
Q
Growth spurts
• Female:
• Male:
A
10-12 years old
12- 14 years old (until 17)
5
Q
Growth spurts (3)
A
- Timing of correction
- Length of treatment
- In order to modify growth, you must first experience growth
6
Q
Intramembranous (4)
A
• Frankl appliance
• Not a tooth borne appliance
• Rationale based on the functional matrix
• Some mandibular repositioning (stimulation of
growth site)
7
Q
Frankl appliance:
A
Stimulation of periosteal growth by
alteration of the neuromuscular environment. This
appliance will stimulate periosteal pull and bone
apposition
8
Q
Cl II correction (3)
A
- True retrognatism (skeletal and genetic)
- Amount of dentoalveolar compensations
- Growth potential (growth prediction)
age
gender
family
9
Q
Head gear (4)
A
- Slows down growth at the tuberosity level
- Growth site
- Let the mandible “catch up” (anterior bite plane)
- Then resume normal growth pattern
