[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 1 (Foll Text in Persian 2007) ::
J Iran Dent Assoc 2007, 19(1): 34-42 Back to browse issues page
Effect of smear layer on the retention of custom made posts luted with two different cements
Hasan Sazgara * 1, Kaveh Seyyedan , Amir hossein Majidi
1- , Hsazegara@yahoo.com
Abstract:   (16805 Views)

Effect of smear layer on the retention of custom made posts luted with two different cements

Dr. H. Sazgara*- Dr. K. Seyyedan ** - Dr. A.H. Majidi***

*Associate Professor of Fixed Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences.

**Assistant Professor of Fixed Prosthodontics Dept., Faculty of Dentistry, Shaheed Beheshti University of Medical Sciences.

***Assistant Professor of Fixed Prosthodontics Dept., Faculty of Dentistry, Qazvin University of Medical Sciences.

Background and Aim: Post retention has a considerable effect on restorative treatments and is influenced by various factors. The purpose of this study was to evaluate the effect of dentinal smear layer on the retention of custom-made posts luted with composite resin and zinc phosphate cements.

Materials and Methods: Forty single-rooted lower premolars were decoronated, filed and filled with gutta-percha and divided into 4 equal groups. Post spaces were prepared to a length of 8 mm. Direct post patterns were made with acrylic resin and castings were fabricated using Ni-cr alloy. In Groups A and C, the post spaces were rinsed with 2 ml of 0.9% normal saline. The specimens in Groups B and D were rinsed with 1 ml of 17% EDTA followed by 1 ml of 5.25% Naocl and 10 ml distilled water. After drying, ZPC (Dentsply) was used for cementation in groups A and B. The samples in Groups C and D were luted with Panavia F2.0. Retention was measured on a Universal Testing Machine at 0.5 m/min. Data were subjected to statistical analysis using ANOVA.

Results: The mean amount of retention was 19.66±1.98 kg, 19.72±2.08 kg, 20.99±2.08 kg and 22.17±3.66 kg in groups A, B, C and D, respectively. There was no significant difference between the groups, but the mean value was highest in group D.

Conclusion: The use of resin cement provided greater retention for custom-made posts compared to ZPC. Removing dentinal smear layer did not significantly affect the retention of custom-made posts cemented with ZPC or Panavia F2.0.

Key words: Smear layer - Custom-made post - Resin cement - Zinc phosphate cement - Retention

Keywords: Smear layer, Custom-made post, Resin cement, Zinc phosphate cement, Retention
Full-Text [PDF 384 kb]   (2072 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:

Sazgara H, Seyyedan K, Majidi A H. Effect of smear layer on the retention of custom made posts luted with two different cements. J Iran Dent Assoc 2007; 19 (1) :34-42
URL: http://jida.ir/article-1-220-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 1 (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 0.04 seconds with 37 queries by YEKTAWEB 4645