IOTN : made easy !!!!!!!!!!!!

1. IOTN
Dental Health
1
(No
need)
2
(Mild/ Little need)
3
(Moderate/
Borderline need)
4
(Severe/ need treatment)
5
(Extreme/ need
treatment)
Overjet 3.5-6 mm +
competent lips
3.5-6 mm +
incompetent lips
6-9 mm > 9 mm
Reverse Overjet 0-1 mm 1-3.5 mm >3.5 mm + no masticatory
& speech difficulties
1-3.5 mm + masticatory &
speech difficulties
>3.5 mm +
masticatory &
speech difficulties
Crossbite Ant/post X-bite + <
1 mm discrepancy
Ant/post X-bite +
1-2mm
discrepancy
Ant/post X-bite + > 2mm
discrepancy
Post lingual X-bite no
contact 1/both segment
Displacement < 1 mm 1-2 mm 2-4 mm > 4 mm
Overbite ≥ 3.5 mm, , no
gingival contact
Complete, no
gingival trauma
Complete + Gingival
trauma
Lat/Ant openbite 1-2 mm 2- 4 mm > 4 mm
Missing teeth Less extensive hypodontia
1/quadrant
Extensive
hypodontia
>1/quadrant
Impeded eruption/
Impacted tooth
Partially
impacted/erupted tooth
Impeded eruption
(except 3
rd
molar)
Supernumery
tooth
Supernumery tooth
present
Cleft Cleft lip and palate