AUTHOR(S): Dr. Rabab Al-Sabbagh and Dr. Nour Al-Obaid

ABSTRACT:A 22-years old male patient presented with the chief complaint of irregularly placed upper and lower front teeth. The patient had Class I canine relation in the left side and Class II canine relation in the right side, while molar relationship was Class I bilaterally. Cephalometric analysis indicated proclined upper and lower anterior teeth on skeletal class I jaw bases with normal growth pattern. The overjet was 2 mm, and the overbite was 3 mm. The maxillary midline had shifted 1 mm to the left from the facial midline and 1 mm to the left from the mandibular midline. Arch perimeter analysis showed 4 mm of tooth material excess in maxillary arch and 6 mm of tooth material excess in lower arch. Using Clear Aligners and interproximal enamel reduction (IER) was planned to correct the crowding of incisors and canines. Post-treatment results showed a correction of crowded upper and lower incisors, bilateral Class I canine relation was obtained, bilateral Class I molar relation was maintained, and inclination of incisors was improved. At the end of treatment, the patient showed pleased smile with improved smile arc.

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