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Panoramic radiographs of finished orthodontic cases will be collected after fulfilling the inclusion and exclusion criteria. Then the collected data will be divided into two groups according to age either adolescent (12-18 years old) or adult group (after 18 years old).
in the panoramic views the long axes of canines and second premolar will be traced digitally using Digital softwares (microDicom vierwer Simeo Antonov Stoykov 0.7.7) & (IC Measure 2.0.0.161).
The objective of this study is to assess the root parallelism between maxillary canines and second premolars in adolescents versus adults group of patients requiring maxillary first premolar extraction during the orthodontic treatment.
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180 participants in 2 patient groups
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Data sourced from clinicaltrials.gov
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