Comparison of orthodontic treatment need and demand between ۱۲ and ۱۷ years old school students in Abade, Iran

Objective: An orthodontic treatment planning program in a specific society requires information on the orthodontic treatment needs of the population. The aims of this study were to compare the student, parent and clinician normative need and demand for orthodontic treatment between ۱۲ and ۱۷ years old groups in a sample of Iranian students using the IOTN. Material and Methods: A sample of ۸۴۶ students including ۴۱۹ students of ۱۲ years old and ۴۲۷ students of ۱۷ years old was selected randomly from schools in Abade. A questionnaire of family socioeconomic status was proposed to the parents. All the students were examined according to the Aesthetic and Dental Health components (AC and DHC) of Index of Orthodontic Treatment Need. Students' and parents' perceived need was also assessed using AC. Then the measurements of IOTN in both groups were compared in each component and the demands of each group were also compared with each other. Results: According to DHC classification, ۲۲.۳% of ۱۲ years old students and ۱۸.۷% of ۱۷ years old students were categorized in the "no need" group; ۲۹.۵% of ۱۲ years old and ۳۵.۶% of ۱۷ years old students in the "border line" group and ۴۸.۲% of ۱۲ years old group and ۴۵.۷% of ۱۷ years old group in the "definite need" group. According to AC, in ۱۲ years old students, the "no need", "border line" and "definite" groups included ۶۱.۹ %, ۲۹% and ۹.۱% of students in turn. On the other hand, the same categories in ۱۷ years old students assessed by the dentist were ۶۶%, ۳۰.۲% and ۳.۷% respectively. (p<۰.۰۵). Conclusion: The treatment need based on DHC and AC scores of IOTN did not differ between ۱۲ and ۱۷ years old groups significantly but the demand for orthodontic treatment in "definitive need" category was more in ۱۲ years old group.

کلیدواژه ها:

Health component ، Aesthetic Component ، Index of Orthodontic Treatment Need ، Orthodontic demand