The main concern was to solve the crowding of lower and upper teeth
Important was to prevent the lower incisors from colliding against the upper incisors during the treatment
Treatment plan was to expand and a mild protrusion of both arches to improve the narrow arches
Due to the Mandibular excess of Bolton index IPR was performed on both arches
We decided to use double retainers (fixed and Vivera) to maintain the final results
保留
Maxillary:
Mandibular:
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