Jaw asymmetry may cause bad posture of the head and the spine—A preliminary study

Azusa Nakashima, Tomohiro Yamada, Hiroyuki Nakano, Goro Sugiyama, Tomotaka Sugi, Y. U. Kamata, Tomoki Sumida, Yoshihide Mori

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)


Objective: Dental occlusion may relate to general conditions including posture, however, there is little evidence of jaw deformities and general posture. The objective of this study is to assess the relationship between skeletal jaw asymmetry and head/body posture. Methods: Forty-five mandibular asymmetry patients were included in this study. Lateral mandibular deviation, head inclination, and vertebrae deviation were studied before and after orthognathic surgery. Results: There was a correlation between mandibular deviation and head inclination, however, there were no correlation between vertebrae deviation and head inclination. On average, head inclination and vertebrae deviation were not changed after orthognathic surgery. But, for cases with a large deviation, they improved after surgery. Conclusions: Lateral mandibular deviation influences head and spine posture, in most cases reversibly.

Original languageEnglish
Pages (from-to)242-246
Number of pages5
JournalJournal of Oral and Maxillofacial Surgery, Medicine, and Pathology
Issue number3
Publication statusPublished - May 2018

All Science Journal Classification (ASJC) codes

  • Surgery
  • Oral Surgery
  • Pathology and Forensic Medicine
  • Otorhinolaryngology


Dive into the research topics of 'Jaw asymmetry may cause bad posture of the head and the spine—A preliminary study'. Together they form a unique fingerprint.

Cite this