Deformation of nasal septal cartilage during mastication

Ayman Al Dayeh, Katherine L. Rafferty, Mark Egbert, Susan W. Herring

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

The cartilaginous nasal septum plays a major role in structural integrity and growth of the face, but its internal location has made physiologic study difficult. By surgically implanting transducers in 10 miniature pigs (Sus scrofa), we recorded in vivo strains generated in the nasal septum during mastication and masseter stimulation. The goals were (1) to determine whether the cartilage should be considered as a vertical strut supporting the nasal cavity and preventing its collapse, or as a damper of stresses generated during mastication and (2) to shed light on the overall pattern of snout deformation during mastication. Strains were recorded simultaneously at the septo-ethmoid junction and nasofrontal suture during mastication. A third location in the anterior part of the cartilage was added during masseter stimulation and manipulation. Contraction of jaw closing muscles during mastication was accompanied by anteroposterior compressive strains (around 21,000 le) in the septo-ethmoid junction. Both the orientation and the magnitude of the strain suggest that the septum does not act as a vertical strut but may act in absorbing loads generated during mastication. The results from masseter stimulation and manipulation further suggest that the masticatory strain pattern arises from a combination of dorsal bending and/or shearing and anteroposterior compression of the snout.

Original languageEnglish (US)
Pages (from-to)1209-1218
Number of pages10
JournalJournal of Morphology
Volume270
Issue number10
DOIs
StatePublished - Oct 1 2009
Externally publishedYes

Fingerprint

Nasal Cartilages
Mastication
mastication
cartilage
Nasal Septum
Cartilage
miniature swine
Sus scrofa
nasal cavity
Nasal Cavity
transducers (equipment)
sutures
Jaw
Transducers
jaws
Sutures
Swine
Muscles
muscles
Growth

All Science Journal Classification (ASJC) codes

  • Animal Science and Zoology
  • Developmental Biology

Cite this

Deformation of nasal septal cartilage during mastication. / Al Dayeh, Ayman; Rafferty, Katherine L.; Egbert, Mark; Herring, Susan W.

In: Journal of Morphology, Vol. 270, No. 10, 01.10.2009, p. 1209-1218.

Research output: Contribution to journalArticle

Al Dayeh, A, Rafferty, KL, Egbert, M & Herring, SW 2009, 'Deformation of nasal septal cartilage during mastication', Journal of Morphology, vol. 270, no. 10, pp. 1209-1218. https://doi.org/10.1002/jmor.10750
Al Dayeh, Ayman ; Rafferty, Katherine L. ; Egbert, Mark ; Herring, Susan W. / Deformation of nasal septal cartilage during mastication. In: Journal of Morphology. 2009 ; Vol. 270, No. 10. pp. 1209-1218.
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