Understanding the formation of maxillary sinus in Japanese human foetuses using cone beam CT

Original Article

Authors: Rieko Asaumi • Iwao Sato • Yoko Miwa •Kosuke Imura • Masataka Sunohara •Taisuke Kawai • Takashi Yosue

Abstract

The formation of the maxillary sinus (MS) is tied to the maturation of the craniofacial bones during development. The MS and surrounding bone matrices in Japanese foetal specimens were inspected using cone beam computed tomography relative to the nasal cavity (NC) and the surrounding bones, including the palatine bone, maxillary process, inferior nasal concha and lacrimal bone.The human foetuses analysed were 223.2 ± 25.9 mm in crown-rump length (CRL) and ranged in estimated age from 20 to 30 weeks of gestation. The amount of bone inthe maxilla surrounding the MS increased gradually between 20 and 30 weeks of gestation. Various calcified structures that formed the bone matrix were found in the cortical bone of the maxilla, and these calcified structures specifically surrounded the deciduous tooth germs. By 30 weeks of gestation, the uncinate process of the ethmoid bone formed a border with the maxilla. The distance from the midline to the maximum lateral surface border of the MS combined with the width from the midline to the maximum lateral surface border of the inferior nasal concha showed a high positive correlation with CRL in Japanese foetuses. There appears to be a complex correlation between the MS and NC formation during development in the Japanese foetus. Examination of the surrounding bone indicated that MS formation influences maturation of the maxilla and the uncinate process of the ethmoid bone during craniofacial bone development.

Keywords: Cone beam CT,  Maxillary sinus, Inferior nasal concha,  Deciduous tooth,  Development

Published online: 21 May 2010 The Author(s) 2010. This article is published with open access at Springerlink.com

0 Responses to “Understanding the formation of maxillary sinus in Japanese human foetuses using cone beam CT”



  1. Lasă un comentariu

Lasă un răspuns

Completează mai jos detaliile despre tine sau dă clic pe un icon pentru autentificare:

Logo WordPress.com

Comentezi folosind contul tău WordPress.com. Dezautentificare / Schimbă )

Poză Twitter

Comentezi folosind contul tău Twitter. Dezautentificare / Schimbă )

Fotografie Facebook

Comentezi folosind contul tău Facebook. Dezautentificare / Schimbă )

Fotografie Google+

Comentezi folosind contul tău Google+. Dezautentificare / Schimbă )

Conectare la %s




Pagini

Blog Stats

  • 185,197 hits
Aprilie 2011
L M M M V S D
    Mai »
 123
45678910
11121314151617
18192021222324
252627282930  

Flickr Photos

Trillium Lake Alpine Glow

Chin Scratching Short-eared Owl

Arrow . . .

Mai multe poze

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Alătură-te altor 1,098 de urmăritori

free counters

%d blogeri au apreciat asta: