Write your message
Volume 16, Issue 4 (October 2022)                   IJT 2022, 16(4): 275-284 | Back to browse issues page

XML Print

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

Meshkinnejad R, Nakhostin A, Khosraviani F. Antioxidants Reduce Microleakage of Resin-based Composite Fillings and the Associated Toxicity After Bleaching Human Teeth. IJT 2022; 16 (4) :275-284
URL: http://ijt.arakmu.ac.ir/article-1-1109-en.html
1- Students Research Committee, School of Dentistry, Arak University of Medical Sciences, Arak, Iran.
2- Department of Restorative Dentistry, School of Dentistry, Arak University of Medical Sciences, Arak, Iran. , Afr_na_sa@yahoo.com
3- University of California, Los Angeles, School of Dentistry, California, USA.
Abstract:   (792 Views)
Background: Bleaching teeth is popular because the discoloration is a major people’s concern. This study aimed to compare the effect of three antioxidants on the microleakage of composite resin filling after bleaching teeth with 35% H2O2, thus minimizing the potential clinical toxicity of filling materials entering patients’ body.
Methods: Sixty-six extracted intact teeth were included in this study. After preparation of a ClV cavity on the buccal surface, the teeth were randomly divided into six groups (n=11, each). Except for group A (control), all others were bleached. Cavities in group A were filled with composite resin. In group B, the samples were immediately restored after bleaching while in group C, the filling was delayed for two weeks after bleaching. In groups D, E, and F, the cavities were treated with either sodium ascorbate, ascorbic acid, or vitamin C, and the filling restored. Teeth were sectioned and the microleakages examined microscopically, and the data were analyzed statistically.
Results: Group A showed the least amount of microleakage. In Group B, there was a significant increase in the microleakage when the samples were filled immediately after bleaching. The microleakages among groups of C, D, E, and F were similar to those in group A.
Conclusion: The microleakage increased significantly after bleaching with 35% H2O2, while treating dental cavities with the antioxidants effectively reduced the microleakage. Thus, delayed filling is a useful approach to minimize the microleakage. The findings help reduce or prevent the clinical toxicity arising from the microleakage of filling materials.
Full-Text [PDF 1620 kb]   (279 Downloads) |   |   Full-Text (HTML)  (76 Views)  
Type of Study: Research | Subject: General

Add your comments about this article : Your username or Email:

Send email to the article author

Rights and permissions
Creative Commons License This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

© 2023 CC BY-NC 4.0 | Iranian Journal of Toxicology

Designed & Developed by : Yektaweb