[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 19, Issue 2 (Foll Text in Persian 2007) ::
J Iran Dent Assoc 2007, 19(2): 81-85 Back to browse issues page
Laboratory evaluation of composite wear resistance with and without occlusal index
Mohammad gavad Moghadas , Nasrin Sarabi , Hamideh Ameri * 1, Amir Salehi
1- , dr_hamedeh@yahoo.com
Abstract:   (16440 Views)

Laboratory evaluation of composite wear resistance with and without occlusal index

Dr. MJ. Moghadas * - Dr. N. Sarabi * - Dr. H. Ameri * - Dr. A. Salehi**

*Assistant Professor of Operative Dentistry Dept., Faculty of Dentistry, Mashhad University of Medical Sciences.

** Dentist.

Abstract

Background and Aim: The polishing and finishing procedures may cause topographical changes and introduce subsurface micro-cracks in dental composite restorations. The effect of Occlusal Index on the amount of wear in the posterior composite restorations was evaluated. Likewise, a comparison was made between the wear rates of Tetric Ceram and Ideal Makoo composite resin products.

Materials and Methods: A total of 40 premolars were collected and randomly divided into four groups. Occlusal Indices were prepared with a transparent acrylic resin (Duralay). Class I cavities were prepared in all specimens. In two groups, teeth were restored with Occlusal Index. However, the restorations were completed without any Occlusal Index in the other two groups. Wear on the surfaces of these restorations were made by an oral cavity simulator and a tooth-brush machine. The vertical sections of the “pre-wear “and “post-wear “replicas were compared with a Projector Profilometer and the differences between the two sections were analyzed using two way ANOVA test at α=0.5.

Results: The results showed that the mean-wear in index groups was higher. The findings did not show any significant difference between the wear rates of the two materials used in this experimental evaluation.

Conclusion: The uses of occlusal index dose not decrease the wear of posterior composite restorations.

Key words: Composite – Wear - Occlusal index

Correspondence Author: Operative Dentistry Dept., Faculty of Dentistry, Mashhad University of Medical Sciences. e.mail:dr_hamedeh@yahoo.com

Keywords: Composite, Wear, Occlusal index
Full-Text [PDF 135 kb]   (3081 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:

Moghadas M G, Sarabi N, Ameri H, Salehi A. Laboratory evaluation of composite wear resistance with and without occlusal index. J Iran Dent Assoc 2007; 19 (2) :81-85
URL: http://jida.ir/article-1-253-en.html


Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.
Volume 19, Issue 2 (Foll Text in Persian 2007) 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 0.06 seconds with 37 queries by YEKTAWEB 4645