RESUMEN
To evaluate the orthodontic treatment need a study was conducted at orthodontic department of Islamic International Dental Hospital [IIDH]. Index of Orthodontic Treatment Need [IOTN] was applied in a sample of 300 patients. Data was analyzed using SPSS version 10.0. Out of 300 subjects 114 were males and 186 females with mean age of 18 +/- 4.8 years were reported. Dental Health Component showed 19% [Grade 5], 57% [Grade 4], 18% [Grade 3], 5% [Grade 2] and 2% [Grade1] results respectively and Aesthetic Component showed percentages as 31.66% [Scale 1-4], 32% [Scale 5-7] and 36.3% [Scale 8-10]. Strong association was found between aesthetic component and dental health component [p=.000]. According to Dental Health Component 75% of the population was found to be in definite treatment need and only 36.3% of the population was in definite treatment need according to Aesthetic Component. No significant gender difference was found for treatment need