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Table. 1.

Definition of landmarks used in this study

Z, N, J, MA, C6, and Ag were identified on the reconstructed two-dimensional posteroanterior cephalogram of a three-dimensional skull model.

Alare, ectocanine, A-point, prosthion, ectomolare, and processus zygomaticus were defined according to the study by Magnusson et al.19

*Although A-point and prosthion were one-point landmarks before expansion, they were separated into right and left landmarks after expansion.

Korean J Orthod 2017;47:77~86 https://doi.org/10.4041/kjod.2017.47.2.77
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