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Topographic Relationship between the Zygomatic Arch and Coronoid Process of the Mandible

Wu-Chul Song 1 Han Seung Ho 2 Kyung-Seok HU ORD ID 3 고기석 1 김용우 1 김희진 ORD ID 3

1건국대학교
2가톨릭대학교
3연세대학교

Accredited

ABSTRACT

Illustrations in almost all textbooks and atlases of anatomy normally show that the zygomatic arch (ZA) and coronoid process (CP) of the mandible overlap vertically. Their topographic relationship is important for plastic surgeons in various situations, such as restorations of ZA fractures. The present study investigated the topographic relationship between the ZA and CP of the mandible in three-dimensional models of Korean human cadavers. The topographic relationship was classified into three types: overlapped, tangential, and separate. The overlapped type was the most common,but the three types showed similar incidences in three-dimensional models. There were no lateral or sex differences according to the three types. The incidence of both sides showing the same type was 70.1%. In conclusion, the predominance of illustrations in almost all textbooks and atlases showing the overlapped type is misleading, since the other two types - where the CP of the mandible does not overlap the ZA - are almost as common.

Citation status

* References for papers published after 2023 are currently being built.

This paper was written with support from the National Research Foundation of Korea.