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

ABSTRACT:The aim of this study was to study Clear Aligners technique efficiency in treating malocclusion and to know its limits and barriers, and to compare dental changes occurring in moderate crowding patients (4-7mm) with skeletal class I malocclusion. So we collected a sample consisted of 45 patients divided into three groups (15 patients treated with traditional fixed orthodontic appliances as control group, 15 patients treated with fixed orthodontic appliances using thermal naitinol archwires and 15 patients treated with clear aligners technique), after finishing orthodontic treatment casts were scanned by three dimensional scanner and radiographic images were taken for each patient and were compared with pretreatment patient data, dental changes were studied using a computer program, the measurements were compared for the three groups and we collected a lot of results, some of them was that changes occurring in the transversal direction of the dental arch was significantly greater in clear aligners group than both control group and the group treated using thermal naitinol archwires.

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