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

March/April 1994
Volume 7 , Issue 2

Share Abstract:

Fracture Strength of Three Different Core Materials in Combination With Three Different Endodontic Posts


Pages: 178-182
PMID: 8003200

The purpose of this study was to determine the fracture load for three different core materials supported by three different post systems. The study was divided into nine separate groups, and each group comprised 10 samples. Specimens were placed in a special jig on a 45-degree angle, and the fracture load values were obtained using a universal testing machine. A 3 x 3 factorial two-way analysis of variance (P < .0408) was used to test the effects of core material and post type on the fractural resistance. Fracture load values (as measured in pounds) were: Flexi-Post/Ti-Core, 204.9; Vlock/Ti-Core, 218.8; Parapost/Ti-Core, 164.8; Flexi-Post/Tytin, 156.0; Vlock/Tytin, 100.6; Parapost/Tytin, 134.6; Flexi-Post/Ketac-Silver, 69.4; Vlock/Ketac-Silver, 50.4; and Parapost/Ketac-Silver, 37.7. The titanium composite, Ti-Core, had the greatest fracture load values in all instances; the silver-filled glass-ionomer specimen, Ketac-Silver, had the least. The Flexi-Post and the microthread, Vlock, had the greatest fracture load values, and the Parapost had the least. Both the Flexi-Post and Vlock post have large bulky heads with many vertical and horizontal grooves, apparently facilitating the locking of the core material into the post.

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