Suggested criteria for malocclusion assessment
Component | Assessment criteria | |||
---|---|---|---|---|
History of previous orthodontic treatment | Removable appliance | Extraoral appliance | Fixed appliance | |
Facial | Profile | Convex | Straight | Concave |
Facial type | Brachy | Meso | Dolicho | |
Asymmetry | Symmetry | Asymmetry | - | |
Nasolabial angle | Obtuse | Normal | Acute | |
Dental | Antero-posterior relationship | Class I | Class II | Class III |
Anterior crossbite | Yes | No | ||
Vertical relationship | Open | Normal | Deep | |
Posterior crossbite | Unilateral crossbite | Normal | Unilateral scissor bite | |
Bilateral crossbite | Bilateral scissor bite | |||
Arch length discrepancy | Crowding | Normal | Spacing | |
Upper incisor | Labioversion | Normal | Linguoversion | |
Lower incisor | Labioversion | Normal | Linguoversion |