Motion of the human mandibular condyle during mastication

S. Miyowaki, Y. Tanimoto, T. Kawakami, M. Sugimura, T. Takano-Yamamoto

Research output: Contribution to journalArticlepeer-review

30 Citations (Scopus)


It has been reported that loading to the mandible during closing movement makes the condylar path move more in the superior direction than that during the free closing movement. In this study, the hypothesis was tested that the displacement of the condyle on the chewing side is greater in the direction of the mandibular fossa than that on the non-chewing side. Using a six-degrees-of-freedom jaw movement recording system, we recorded condylar motion in 12 healthy adults without TMD, during the chewing of a large hard gummy jelly. The maximum displacements at the condyle on the chewing side from the maximum intercuspation (CO) position were significantly larger in the superior and medial directions at the initial stage and in the posterior direction at all stages (0.5 mm, 0.5 mm, and 0.6 mm, respectively) than those on the non-chewing side (0.0 mm, 0.1 mm, and 0.1 mm, respectively). This suggests that, in healthy adults, the condyles at CO are located in a position such that excessive load is not applied to the temporomandibular joint when there are the aforementioned displacements.

Original languageEnglish
Pages (from-to)437-442
Number of pages6
JournalJournal of dental research
Issue number2
Publication statusPublished - 2001
Externally publishedYes


  • Displacement
  • Mandibular condyle
  • Mastication
  • Motion

ASJC Scopus subject areas

  • Dentistry(all)


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