This 10 year-old girl has a class I occlusion with mild arch length deficiencies. She also has palatally and distally transposed maxillary left second premolar, which did not improve as her posterior teeth erupted. How would you treat this situation? The authors treated her nonextraction and corrected the transposition. Click on the link below to view the April Case of the Month and see the excellent results achieved in this challenging case.

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