pISSN 2234-7518
eISSN 2005-372X

Table. 1.

Landmark definitions

Landmark Definition
Bilateral skeletal landmarks
Lateral orbit right (LOR) The most anterior point at the intersection of the frontozygomatic suture on the right inner rim of the orbit
Lateral orbit left (LOL) The most anterior point at the intersection of the frontozygomatic suture on the left inner rim of the orbit
Condyle point right (COR) The most superior (sagittal perspective) and the middle (frontal perspective) point on the contour of the right condyle head
Condyle point left (COL) The most superior (sagittal perspective) and the middle (frontal perspective) point on the contour of the left condyle head
Jugal point right (JR) The intersection of the outline of the right maxillary tuberosity and the zygomatic buttress
Jugal point left (JL) The intersection of the outline of the left maxillary tuberosity and the zygomatic buttress
Right antegonial notch (AGR) Right deepest point on the curvature of the antegonial notch
Left antegonial notch (AGL) Left deepest point on the curvature of the antegonial notch
Midline skeletal landmarks
Crista galli (CG) The most superior and anterior points on the median ridge of bone that projects upward from the cribriform plate of the ethmoid bone
Anterior nasal spine (ANS) Center of the intersection of the nasal septum and the palate
Menton (Me) Midpoint on the inferior border of the mental protuberance
Bilateral dentoalveolar landmarks
Upper first molar axis right (U6AR) Furcation of the upper right first molar
Upper first molar axis left (U6AL) Furcation of the upper left first molar
Alveolar crest right (ACR) The right side of the most cervical rim of the alveolar bone proper
Alveolar crest left (ACL) The left side of the most cervical rim of the alveolar bone proper
Upper first molar cup right (U6MCR) The upper right first molar mesiobuccal cup tip
Upper first molar cup left (U6MCL) The upper left first molar mesiobuccal cup tip
Upper first molar central fossa right (U6CFR) The upper right first molar central fossa
Upper first molar central fossa left (U6CFL) The upper left first molar central fossa
Lower first molar mesiobuccal cusp tip right (L6MBR) The lower right first molar mesiobuccal cup tip
Lower first molar mesiobuccal cusp tip left (L6MBL) The lower left first molar mesiobuccal cup tip
Lower first molar axis right (L6AR) Furcation of the lower right first molar
Lower first molar axis left (L6AL) Furcation of the lower left first molar
Korean J Orthod 2021;51:77~85 https://doi.org/10.4041/kjod.2021.51.2.77
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