pISSN 2234-7518
eISSN 2005-372X

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Fig. 1. Cephalometric landmarks. S, sella; N, nasion; Or, orbitale; Po, porion; Ar, articulare; Ba, basion; Pt, pterygoid; Ptm, pterygomaxillary fissure; Go, gonion; Pog, pogonion; Gn, gnathion; Me, menton; ANS, anterior nasal spine; PNS, posterior nasal spine; A, A point; B, B point; U1, incisal tip of upper incisors; U6, mesiobuccal cusp of the upper first molars; L1, incisal tip of the lower incisors. Reference planes. SN, Sella-nasion; FH, porion-orbitale; ANS-PNS, palatal plane; U1-U6, occlusal plane; Go-Me, mandibular plane; nasion-pogonion, facial plane; sella-gnathion, Y axis.
Korean J Orthod 2021;51:15~22 https://doi.org/10.4041/kjod.2021.51.1.15
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