Stereological analysis of bone architecture in the pig zygomatic arch

The Anatomical Record
S TengJ M Rensberger

Abstract

Stereological analysis of trabecular bone structure may reveal information about regional variations in stress distribution, especially in areas like the zygomatic arch in which those variations are difficult to assess mechanically. This study investigates regional differences in trabecular orientation, thickness, and density in the zygomatic and squamosal bones of pigs. Zygomatic arches were serially sectioned frontally (n = 4), horizontally (n = 4), or parasagittally (n = 4), at a thickness of 0.8 mm. Sections were viewed under a stereomicroscope; video-images were digitized and analyzed with an automated program. All regions were anisotropic. Predominant orientation of trabeculae differed between and within bones. Three main patterns were seen. Anteriorly, zygomatic trabeculae were mainly arranged vertically and anteroposteriorly (relative to the occlusal plane). Posteriorly, including the jaw joint region, the squamosal featured primarily mediolateral trabeculae. In the midsection of the arch, where the two bones overlap, the trabeculae displayed a predominantly anteroposterior orientation with a secondary mediolateral peak. Trabeculae were typically 0.3-0.4 mm wide and occupied 40-50% of the area of the sections with few r...Continue Reading

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Citations

Feb 21, 2008·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·John D PolkD Ahluwalia
Nov 22, 2016·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Jeffrey T Laitman, Kurt H Albertine
Nov 22, 2016·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Amanda L Smith, Ian R Grosse
Nov 22, 2016·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Susan W Herring, Pannee Ochareon
Mar 1, 2002·The Anatomical Record·Betty J SindelarSusan W Herring
Dec 1, 2012·Stem Cells Translational Medicine·Sarindr Bhumiratana, Gordana Vunjak-Novakovic
Nov 22, 2016·The Anatomical Record : Advances in Integrative Anatomy and Evolutionary Biology·Hallie Edmonds
Nov 18, 2009·American Journal of Physical Anthropology·Timothy M RyanChristopher J Vinyard
Dec 18, 2001·American Journal of Physical Anthropology·D E LiebermanO M Pearson
Jul 6, 2002·Journal of Human Evolution·Timothy M Ryan, Richard A Ketcham
Jan 7, 2005·Journal of Oral and Maxillofacial Surgery : Official Journal of the American Association of Oral and Maxillofacial Surgeons·Ja Young ShinGregory Joseph King
Dec 16, 2005·The Journal of Experimental Biology·H PontzerD M L Cooper

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