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

July/August 2006
Volume 19 , Issue 4

Share Abstract:

Comparison of the Retentive Characteristics of Cobalt-Chromium and Commercially Pure Titanium Clasps Using a Novel Method

Edward T. P. Tse, BDS, MDS / Leo Y. Y. Cheng, MPhil / Henry W. K. Luk, PhD / Frederick C. S. Chu, BDS, MSc, PhD / John Chai, BDS, MS, MJ, DLaw / Tak W. Chow, BDS, MSc, PhD

Pages: 371372
PMID: 16900820

This study aimed to compare the retentive forces of cast cobalt-chromium (Co-Cr) and commercially pure titanium (cpTi) clasps. A clasp assembly comprising a pair of symmetrical clasps was made to fit the opposite halves of a hardened stainless-steel sphere. This twin clasp was designed to counterbalance the tipping forces when the clasp assembly was drawn from the sphere. A total of 120 clasp assemblies were fabricated in cast Co-Cr and cpTi and placed at undercut depths of 0.25 mm, 0.50 mm, and 0.75 mm (n = 20 for each). For Co-Cr clasps, the retentive forces at these undercuts depths were 2.34 0.23 N, 4.65 0.35 N, and 7.56 0.50 N, respectively. The corresponding retentive forces for cpTi clasps were 1.24 0.13 N, 2.34 0.23 N, and 3.70 0.27 N. The retentive force of cpTi clasps was approximately half that of Co-Cr clasps for the same undercut depth. Int J Prosthodont 2006;19:371372.

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.
  © 2015 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