The index of orthodontic treatment need was used to assessmalocclusion severity, esthetic status (measured by an orthodontist) and esthetic self-perception. All the study subjects—the treatment group, the waiting group and the school group—were interviewed three times over aperiod of two years.
In the end, the researchers found that “fixed orthodontic treatment improved the esthetic self-perceptions in Brazilian adolescents aged 12 to 15 years who sought orthodontic care.”
They also found that those who did not receive care “had significantly worse self-ratings,” an outcome only partly influenced by the severity of their malocclusion.
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Dr Elan Kaufman and American Dental Association