[Home ] [Archive]    
:: Main :: About :: Current Issue :: Archive :: Search :: Submit ::
Main Menu
Journal Information::
Editorial Policies::
Articles archive::
For Authors::
Contact us::
Site Facilities::
::
Search in website

Advanced Search
Receive site information
Enter your Email in the following box to receive the site news and information.
Last site contents
:: Contact Us
:: Volume 18, Issue 3 (Foll Text in Persian 2006) ::
J Iran Dent Assoc 2006, 18(3): 0-0 Back to browse issues page
Effect of saliva and blood contamination on shear bond strength of cured dentin adhesives
Esmail Yassini * 1, Elham Shidoush
1- , e-mail:yassini_e@hotmail.com
Abstract:   (14473 Views)

Effect of saliva and blood contamination on shear bond strength of cured dentin adhesives

 Dr. E. Yassini* - Dr. E. Shidoush**

*- Professor of Operative Dentistry Dept. - Faculty of Dentistry - Tehran University of Medical Sciences.

** - Dentist.

Background and Aim: Achieving good moisture control is a common problem encountered in restorative dentistry, especially after applying and curing dentin bonding agents over dentin tissue. The aim of this study was evaluation of the effect of saliva and blood contamination on shear bond strength of cured dentin adhesives.

Materials and Methods: Thirty-five extracted sound human molars and premolars were collected and after debridement, stored in 0.5% chloramine solution for one week and preserved in distilled water, afterwards. The buccal and lingual surfaces were ground flat to expose the dentin. These surfaces were etched with 37% phosphoric acid for 15 seconds, rinsed for 20 seconds and dried with a cotton pellet. A single–bottle dentin-bonding agent was applied on the etched surfaces and cured for 20 seconds. This procedure was repeated in order to achieve excellent bonding. The specimens were divided into five groups of 7 each: Group 1 (Control) was not contaminated in Group 2, bonding surfaces were contaminated with blood and saliva without any other treatment Group 3 was contaminated and then rinsed and dried completely Group 4 was contaminated, then rinsed and dried and re-etched for 10 seconds Group 5 was contaminated, rinsed and completely dried, re-etched for 10 seconds, rinsed, dried, re-bonded and cured for 20 seconds. A composite cylinder built in a plastic mold (2 mm high × 10 mm wide) was placed on the treated surfaces and cured for 40 seconds. After thermocycling, the shear bond strengths of all specimens were measured using an Instron testing machine. The data were subjected to one-way ANOVA, with 95% coefficient of confidence.

Results: A significant difference was observed between the mean shear bond strength of the contaminated and uncontaminated groups (P=< 0.001).

Conclusion: Contamination of cured dentin bonding agents with blood and saliva, significantly reduced the shear bond strength of composite to dentin.

 Key words: One bottle adhesive - Saliva contamination - Blood contamination - Shear bond strength

Keywords: One bottle adhesive, Saliva contamination, Blood contamination, Shear bond strength
Full-Text [PDF 152 kb]   (2388 Downloads)    
Type of Study: Research | Subject: General
Send email to the article author

Add your comments about this article
Your username or Email:

CAPTCHA


XML     Print


Download citation:
BibTeX | RIS | EndNote | Medlars | ProCite | Reference Manager | RefWorks
Send citation to:

Yassini E, Shidoush E. Effect of saliva and blood contamination on shear bond strength of cured dentin adhesives. J Iran Dent Assoc 2006; 18 (3)
URL: http://jida.ir/article-1-71-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 18, Issue 3 (Foll Text in Persian 2006) Back to browse issues page
Journal of Iranian Dental Association

AWT IMAGE

This work is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License which allows users to read, copy, distribute and make derivative works for non-commercial purposes from the material, as long as the author of the original work is cited properly

Persian site map - English site map - Created in 0.04 seconds with 37 queries by YEKTAWEB 4645