Aim: To assess the orthodontic treatment needs of 9- to 12-year-old children using the index orthodontic treatment need (IOTN) and to determine its association with gender and age. Materials and Methods: One experienced examiner evaluated the IOTN’s Dental Health Component (DHC) and its Aesthetic Component (AC) in 300 individual (167 females and 133 males) with a mean age of 10.0 years who had come for dental check-up to the College of Dentistry of Ajman University of Science and Technology during a certain period of time. A Chi-square test was used to analyze the IOTN results by gender and age. Results: The DHC showed that 44.9% of the children had no or little need while 28.3% were on borderline category, and 26.8% showed a great need for treatment. There was no significant difference between genders according to the DHC grade of the IOTN (P = 0.763). In evaluating the AC, 48.7% were laid in the no-need or little-need category, 31.0% were in the moderate-need, and 20.3% placed in the great-need to orthodontic treatment. Conclusions: The outcomes of this study indicated that one-quarter of the contributed children are in need for orthodontic treatment, crowding and increased over jet were the most common occlusal features.