Localization of Basicranium Midline by Submentovertex Projection for the Evaluation of Condylar Asymmetry
Figure 2
(a-b) Anatomic landmarks and reference planes used in submentovertex cephalometric analysis (Tracing 1). TPA, transporionic axis: line passing through the left and right tip of ear rods corresponding to the line passing through the midpoint of external auditory meatus (LM, left Mei; RM, right Mei); MP, midsagittal axis: perpendicular bisecting TPA; RCoL, right condylion lateralis: most lateral aspect of right condyle; RCoM, condylion medialis: most medial aspect of right condyle; LCoL, left condylion lateralis: most lateral aspect of left condyle; LCoM, left condylion medialis: most medial aspect of left condyle; RCoL-MP, right condylion lateralis-midline: distance from right L-point to MP; RCoM-MP: right condylion medialis-midline: distance from right M-point to MP; LCoL-MP, left condylion lateralis-midline: distance from left L-point to MP; LCoM-MP, left condylion medialis-midline: distance from left M-point to MP.
