Home Subscription Services
 
   

 
The Journal of Adhesive Dentistry
JAD Home Page
About the Editor
Editorial Board
Submit
Author Guidelines
Submission Form
Reprints / Articles
Permissions
Advertising
Advertising
MEDLINE Search
 
 
 
 
 
FacebookTwitter
Quintessence Publishing: Journals: JAD

 

The Journal of Adhesive Dentistry

Edited by Jean-François Roulet

ISSN (print) 1461-5185 • ISSN (online) 1757-9988

Publication:

May/June 2010
Volume 12 , Issue 3



Pages: 223 - 229
Back
Share Abstract:

Bond Strength of Poly(methyl methacrylate) Denture Base Material to Cast Titanium and Cobalt-Chromium Alloy

Matsuda, Yasuhiro / Yanagida, Hiroaki / Ide, Takako / Matsumura, Hideo / Tanoue, Naomi

Purpose: The shear bond strength of an auto-polymerizing poly(methyl methacrylate) denture base resin material to cast titanium and cobalt-chromium alloy treated with six conditioning methods was investigated. Materials and Methods: Disk specimens (10 mm in diameter and 2.5 mm in thickness) were cast from pure titanium and cobalt-chromium alloy. The specimens were wet ground to a final surface finish of 600 grit, air dried, and treated with the following bonding systems: 1) air abraded with 50-70-μm-grain alumina (SAN); 2) air abraded with 50-70-μm-grain alumina + conditioned with Alloy Primer (ALP); 3) air abraded with 50-70-μm-grain alumina + conditioned with AZ Primer (AZP); 4) air abraded with 50-70-μm-grain alumina + conditioned with Estenia Opaque Primer (EOP); 5) air abraded with 50-70-μm-grain alumina + conditioned with Metal Link Primer (MLP), and 6) treated with ROCATEC system (ROC). A denture base material (Palapress Vario) was then applied to each metal specimen. Shear bond strengths were determined before and after 10,000 thermocycles. Results: The strengths decreased after thermocycling in all combinations. Among the treatment methods assessed, groups 2 and 4 showed significantly (p < 0.05) enhanced shear bond strengths for both metals. In group 4, the strength in MPa (n = 7) after thermocycling for cobalt-chromium alloy was 38.3, which was statistically (p < 0.05) higher than that for cast titanium (34.7). Conclusion: Air abrasion followed by the application of two primers containing a hydrophobic phosphate monomer (MDP) effectively improved the strength of the bond of denture base material to cast titanium and cobalt-chromium alloy.

Keywords: cobalt-chromium, denture base material, primer, poly(methyl methacrylate), shear bond strength, titanium

Full Text PDF File | Order Article

 

 
  © 2014 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