The Korean Association of Orthodontists

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Table. 1. Table 1Design, participants, type of intervention, and observation period included in the qualitative analysis (<sup>*</sup>statistically significant)

CT, Clinical trial; pts, patients; ABO, American Board of Orthodontists; Mx, maxillary; Md, mandible; IPR, interproximal reduction; CBCT, cone-beam computed tomography; RCT, randomized controlled trial.

Korean J Orthod 2019;49:140~149 https://doi.org/10.4041/kjod.2019.49.3.140