5004 tutorials Flashcards
1
Q
Grade 1 of IOTN
A
almost perfect
2
Q
Grade 2 of IOTN
A
OJ 4-6mm
Competent lips
Mild crowding
3
Q
Grade 3 of IOTN
A
4-6mm
Incompetent lips
Moderate crowding
4
Q
Grade 4 of IOTN
A
OJ 6-9mm
Severe crowding
Deep traumatic overbite
Supernumeraries
5
Q
Grade 5 of IOTN
A
> 9mm
Impacted teeth
severe hypodontia
craniofacial abnormalities