Home Subscription Services
 
   

 
Quintessence International
QI Home Page
About the Editor
Editorial Board
Accepted Manuscripts
Submit
Author Guidelines
Submission Form
Reprints / Articles
Permissions
Advertising
MEDLINE Search
 
 
 
 
 
FacebookTwitter
Quintessence Publishing: Journals: QI
Quintessence International

Edited by Eli Eliav

ISSN 0033-6572 (print) • ISSN 1936-7163 (online)

Publication:
February 2012
Volume 43 , Issue 2

Back
Share Abstract:

Effect of filler content on the microtensile bond strength of composite resin and dentin in Class I cavities

Bing Han, BDS/Yanmei Dong, DDS, MS, PhD/Xuejun Gao, BDS, MS, PhD/Xiaoyan Wang, MD, PhD/Fucong Tian, MD

Pages: e16-e22
PMID: 22257879

Objective: To investigate the effect of filler content on microtensile bond strength (μ-TBS) in Class I cavities. Method and Materials: Experimental composites with filler contents of 80%, 76%, 70%, 60%, and 50% by weight were used. Polymerization shrinkage was measured with Acuvol, and a three-point flexural test was performed to determine flexural properties. For evaluation of μ-TBS, 25 extracted human molars were randomly divided into five groups and Class I cavities were prepared. After filling with one of the experimental composites and curing for 40 seconds, teeth were serially sectioned perpendicular to the cavity floor. Stick-shaped samples were tested with a microtensile tester. Statistical analysis was conducted using ANOVA and Pearson correlation tests. Results: Significant correlations were found between filler content and polymerization shrinkage (r = 0.973, P < .05) and the filler content and Young modulus (r = 0.891, P < .05). Different filler contents in the experimental composites had no significant effect on μ-TBS or flexural strength. Conclusion: In a Class I cavity model, this in vitro study showed that the filler content did not influence the flexural strength of experimental composite resins and had no effect on the microtensile bond strength between composite resin and dentin. (Quintessence Int 2012;43:e16e22)

Key words: composite resins, filler content, flexural modulus, flowable composites, microtensile bond strength, polymerization shrinkage

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.
  © 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