Class III Flashcards
1
Q
FMPA angle for Class III
A
Can be average, increased or reduced
2
Q
How do we monitor growth status?
A
Height + weight charts
3
Q
When is interceptive tx suitable for Class III patients?
A
Suitable if class III incisors have developed due to early contact on permanent incisors (e.g. mandibular displacement)
4
Q
Definition of Class III incisor relationship
A
Lower incisor edges occlude anterior to the cingulum plateau of the upper incisors
OJ is reduced or reversed
5
Q
Environmental factors for Class III (medical)
A
Acromegaly
CL(P)
6
Q
Tx options for Class III
A
- Do nothing
- Early interceptive tx with URA
- Growth modification
- Camouflage
- Orthognathic surgery
7
Q
How does a Frankel III work?
A
Shields hold lip away
Palatal arch to procline upper incisors
Lower labial bow to retrocline lower incisors
8
Q
URA for class III
A
Anterior xbite correction
