Home Subscription Services

The International Journal of Prosthodontics
IJP Home Page
About the Editor
Editorial Board
Accepted Manuscripts
Author Guidelines
Submission Form
Reprints / Articles
Quintessence Publishing: Journals: IJP
The International Journal of Prosthodontics

Edited by George A. Zarb, BChD, DDS, MS, MS, FRCD(C)

ISSN 0893-2174

September/October 1992
Volume 5 , Issue 5

Share Abstract:

Fracture-Surface Analysis of a Glaze-Strengthened Magnesia Core Material


Pages: 475-478
PMID: 1290579

The purpose of this research was to study fracture initiation in a glaze-strengthened magnesia ceramic substance used as a core material for all-ceramic crowns. The fracture surfaces of modulus of rupture bars were studied to locate the fracture initiation point. These points were located at the center of hackles that are oriented parallel to the direction of the crack advance. The distance from the fracture initiation point to the surface of the test bars was measured. A direct relationship was found between the flexure strength and the depth of the fracture initiation point. This is consistent with the theory that residual compressive stresses at the glaze-body interface inhibit the spread of flaws and are responsible for the increases in strengths observed.

Full Text PDF File | Order Article


Get Adobe Reader
Adobe Acrobat Reader is required to view PDF files. This is a free program available from the Adobe web site.
Follow the download directions on the Adobe web site to get your copy of Adobe Acrobat Reader.
  © 2017 Quintessence Publishing Co Inc

Home | Subscription Services | Books | Journals | Multimedia | Events | Blog
Terms of Use | Privacy Policy | About Us | Contact Us | Advertising | Help | Sitemap | Catalog