Steps : 7
Treatment period : approx. 14 weeks
Analysis : minor anterior crowding
For the maxillary, crowding was eliminated with just an expansion setup, and aligned.
For the mandibular, a retraction space was needed to avoid occlusal interference, so we setup an expansion with IPR.
After crowding was resolved, ideal alignment was achieved through rotation leveling,
and finally space closing and setup were completed by retraction.
Steps : 12
Treatment period : approx. 24 weeks
Analysis : anterior crowding
To secure space, IPR and expansion setup of the mandibular anterior region were performed.
After securing space, aligned it while adjusting the rotation and tip.
In the last retraction step, we made some overcorrection and completed the setup.
Steps : 23
Treatment period : approx. 46 weeks
Analysis : severe crowding at Mx/Mn
In the case of very severe crowding and close occlusal relationship, we performed expansion setup and IPR together.
We mainly aligned central incisor axis adjustment and #22 rotation for the maxillary,
and #31 rotation and #32/42 labial movement for the mandibular.
We performed IPR once more due to severe crowding, and the setup was completed after retraction.
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