IOTN Grade 2 (Little Need)

 

This grade indicates little need for treatment and can be classified as follows:

2a Increased overjet greater than 3.5mm but less than or equal to 6mm with competent lips.
2b Reverse overjet greater than 0mm but less than or equal to 1mm.
2c Anterior or posterior crossbites with less than or equal to 1mm discrepancy between retruded contact position and intercuspal position.
2d Contact point displacements greater than 1mm but less than or equal to 2mm.
2e Anterior or posterior open bite greater than 1mm but less than or equal to 2mm.
2f Increased overbite greater than or equal to 3.5mm without gingival contact.
2g Pre-normal or post-normal occlusions with no other anomalies (includes up to half a unit discrepancy).