ABSTRACT
Although work has been done in Pakistan to determine the orthodontic treatment need of patients, but till now no study had been done to evaluate the orthodontic treatment need on aesthetic basis. Aesthetic Component [AC] of Index of Orthodontic Treatment Need [IOTN] was used on a sample of 100 pretreatment study casts of the patients at de'Montmorency College of Dentistry, Lahore Pakistan, to evaluate the aesthetic need for orthodontic treatment. The data was statistically analyzed by SPSS [8.0]. Overall it was found that 41% of the cases needed definite orthodontic treatment. 37% of female patients and 52% of male patients needed definite orthodontic treatment. 41% of the patients were classified as being in need of moderate orthodontic treatment, with 18% having no orthodontic treatment need. Aesthetic Component grade 8 was shown by 26% of cases. Results of the study showed a high number of patients in need of the orthodontic treatment