Porion
Porion
Definition
Porion is an important landmark point utilized to evaluate the craniofacial structure. Located at the outermost and highest position on the bony surface of the external auditory meatus, it plays a key role in establishing the Frankfort horizontal plane. This plane acts as a reference plane for anthropometric and cephalometric analyses.
References
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Text written by Muhammad A. Javaid, MD, PhD © 2024 IMAIOS.
Choi JW, Jung SY, Kim HJ, Lee SH. Positional symmetry of porion and external auditory meatus in facial asymmetry. Maxillofac Plast Reconstr Surg. 2015 Oct 1;37(1):33. doi: 10.1186/s40902-015-0033-1.
