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Fig. 4.

Patient 3, a 12-year-old girl. A, T1, at the completion of orthodontic treatment. B, T2, after 4 months of using the Oral-treaper. C, Color depth spectrum at T1 and T2.

Korean J Orthod 2017;47:207~212 https://doi.org/10.4041/kjod.2017.47.3.207
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