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Volume 12, Issue 1 (1-2023)
2023, 12(1): 1-7 |
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Naser Alavi F, Moein N, Yousefi M A. Research Paper: Effects of Three Whitening Toothpastes on the Surface Roughness and Morphology of a Nanohybrid Composite Resin. Journal title 2023; 12 (1) :1-7
URL: http://3dj.gums.ac.ir/article-1-566-en.html
URL: http://3dj.gums.ac.ir/article-1-566-en.html
1- Assistant professor, Department of Operative Dentistry, Dental Sciences Research Center, School of Dentistry, Guilan University of Medical Sciences, Rasht, Iran.
2- Graduate Student, Guilan University of Medical Sciences, Rasht, Iran.
2- Graduate Student, Guilan University of Medical Sciences, Rasht, Iran.
Abstract: (740 Views)
Abstract
Introduction: The present in vitro study compared the effects of three whitening toothpastes on the surface roughness of a nanohybrid composite resin.
Materials and Methods: Fifty-five disk-shaped composite resin samples (Opallis) were produced and divided into five groups based on the brushing with toothpastes (n=11): 1. Whitening toothpaste containing blue-covarine (White Now, Signal); 2. Whitening toothpaste containing hydrogen peroxide (Optic White, Colgate); 3. Whitening toothpaste containing abrasive agents (Opalescence, Ultradent); 4. Conventional toothpaste (Max Fresh, Colgate); 5. Control (storage in distilled water). Brushing in all test groups was carried out using a brush testing machine. Changes in surface roughness (Ra) and the surface morphology of composite resin were evaluated using profilometry and electron microscopy, respectively. The data were analyzed with paired-samples t-test, Wilcoxon, Kruskal-Wallis, and Mann-Whitney tests. (α=0.05).
Results: Brushing with different kinds of toothpaste increased the Ra of the composite resin compared to the baseline (p<0.05). There were significant differences in Ra between the groups (P<0.001). The Optic White toothpaste group exhibited higher surface roughness than the conventional toothpaste group (Max Fresh) (P<0.001), with no significant differences from the White Now and Opalescence groups (P=0.065 and P=0.523, respectively).
Conclusion: Hydrogen peroxide-containing whitening toothpastes caused the greatest changes in surface roughness and morphology of the nanohybrid composite resin compared to the conventional toothpaste.
Introduction: The present in vitro study compared the effects of three whitening toothpastes on the surface roughness of a nanohybrid composite resin.
Materials and Methods: Fifty-five disk-shaped composite resin samples (Opallis) were produced and divided into five groups based on the brushing with toothpastes (n=11): 1. Whitening toothpaste containing blue-covarine (White Now, Signal); 2. Whitening toothpaste containing hydrogen peroxide (Optic White, Colgate); 3. Whitening toothpaste containing abrasive agents (Opalescence, Ultradent); 4. Conventional toothpaste (Max Fresh, Colgate); 5. Control (storage in distilled water). Brushing in all test groups was carried out using a brush testing machine. Changes in surface roughness (Ra) and the surface morphology of composite resin were evaluated using profilometry and electron microscopy, respectively. The data were analyzed with paired-samples t-test, Wilcoxon, Kruskal-Wallis, and Mann-Whitney tests. (α=0.05).
Results: Brushing with different kinds of toothpaste increased the Ra of the composite resin compared to the baseline (p<0.05). There were significant differences in Ra between the groups (P<0.001). The Optic White toothpaste group exhibited higher surface roughness than the conventional toothpaste group (Max Fresh) (P<0.001), with no significant differences from the White Now and Opalescence groups (P=0.065 and P=0.523, respectively).
Conclusion: Hydrogen peroxide-containing whitening toothpastes caused the greatest changes in surface roughness and morphology of the nanohybrid composite resin compared to the conventional toothpaste.
Type of Study: Original article |
Subject:
General
Received: 2023/02/5 | Accepted: 2023/01/20 | Published: 2023/06/27
Received: 2023/02/5 | Accepted: 2023/01/20 | Published: 2023/06/27
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Articles Copyright © The Author(s).
Owned by Guilan University of Medical Sciences.
Co-published by Negah Institute for Scientific Communication.
Contact Information
The end of professor Samii Blv, Guilan University of Medical Sciences Complex, Dental School, Rasht, Iran.
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Email: den3djournal@gums.ac.ir
