<abstract xmlns="http://www.w3.org/1999/xhtml">

<sec><h3>BACKGROUND</h3>
<p>If composite resin restoration is required following external bleaching treatment, a waiting period of between 1 and 3 weeks is needed to avoid restoration failure. However, patients usually need faster treatment.</p>
</sec>
<sec><h3>AIM</h3>
<p>This study aimed to investigate the effect of chitosan nanoparticles as an antioxidant material on the shear bond strength (SBS) of composite resin restorations to enamel after external bleaching.</p>
</sec>
<sec><h3>METHODS</h3>
<p>Thirty premolars were used in this study and randomly assigned into four groups of six samples, Group 1, no bleaching – no antioxidant, Group 2, bleaching – composite restoration, Group 3, bleaching – waiting 2 weeks – composite restoration, Group 4, bleaching – sodium ascorbate – composite restoration, Group 5, bleaching – chitosan nanoparticles – composite restoration. The SBS was tested with a universal testing machine. One-way analysis of variance and the Turkey’s test were used for statistical data analysis (p &lt; 0.05).</p>
</sec>
<sec><h3>RESULTS</h3>
<p>The group that applied chitosan nanoparticles to the teeth previously bleached and then restored with composite resin resulted in similar SBS as the other groups (p > 0.05), except for the group that was bleached and directly restored with composite resin (p = 0.000).</p>
</sec>
<sec><h3>CONCLUSION</h3>
<p>The chitosan nanoparticle has the potential as an antioxidant material since it produces similar SBS to composite resin restorations on enamel after external bleaching than the other groups.</p>
</sec>
</abstract>

BACKGROUND
If composite resin restoration is required following external bleaching treatment, a waiting period of between 1 and 3 weeks is needed to avoid restoration failure. However, patients usually need faster treatment.

AIM
This study aimed to investigate the effect of chitosan nanoparticles as an antioxidant material on the shear bond strength (SBS) of composite resin restorations to enamel after external bleaching.

METHODS
Thirty premolars were used in this study and randomly assigned into four groups of six samples, Group 1, no bleaching – no antioxidant, Group 2, bleaching – composite restoration, Group 3, bleaching – waiting 2 weeks – composite restoration, Group 4, bleaching – sodium ascorbate – composite restoration, Group 5, bleaching – chitosan nanoparticles – composite restoration. The SBS was tested with a universal testing machine. One-way analysis of variance and the Turkey’s test were used for statistical data analysis (p < 0.05).

RESULTS
The group that applied chitosan nanoparticles to the teeth previously bleached and then restored with composite resin resulted in similar SBS as the other groups (p > 0.05), except for the group that was bleached and directly restored with composite resin (p = 0.000).

CONCLUSION
The chitosan nanoparticle has the potential as an antioxidant material since it produces similar SBS to composite resin restorations on enamel after external bleaching than the other groups.

Effect of Chitosan Nanoparticle as an Antioxidant Material on Shear Bond Strength of Composite Resin to Enamel after External Bleaching

Department of Conservative Dentistry, Faculty of Dentistry

Open Access Macedonian Journal of Medical Sciences

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

BACKGROUND
If composite resin restoration is required following external bleaching treatment, a waiting period of between 1 and 3 weeks is needed to avoid restoration failure. However, patients usually need faster treatment.

AIM
This study aimed to investigate the effect of chitosan nanoparticles as an antioxidant material on the shear bond strength (SBS) of composite resin restorations to enamel after external bleaching.

METHODS
Thirty premolars were used in this study and randomly assigned into four groups of six samples, Group 1, no bleaching – no antioxidant, Group 2, bleaching – composite restoration, Group 3, bleaching – waiting 2 weeks – composite restoration, Group 4, bleaching – sodium ascorbate – composite restoration, Group 5, bleaching – chitosan nanoparticles – composite restoration. The SBS was tested with a universal testing machine. One-way analysis of variance and the Turkey’s test were used for statistical data analysis (p  0.05), except for the group that was bleached and directly restored with composite resin (p = 0.000).

CONCLUSION
The chitosan nanoparticle has the potential as an antioxidant material since it produces similar SBS to composite resin restorations on enamel after external bleaching than the other groups.

BACKGROUND
If composite resin restoration is required following external bleaching treatment, a waiting period of between 1 and 3 weeks is needed to avoid...

Effect of Chitosan Nanoparticle as an Antioxidant Material on Shear Bond Strength of Composite Resin to Enamel after External Bleaching

Published Online: Jun 18, 2024

Page range: 298 - 303

Received: Mar 08, 2024

Accepted: Apr 16, 2024

DOI: https://doi.org/10.3889/oamjms.2024.11893

Keywords
Antioxidant, Chitosan nanoparticle, External bleaching, Shear bond strength

© 2024 Diatri Nari Ratih et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

Effect of Chitosan Nanoparticle as an Antioxidant Material on Shear Bond Strength of Composite Resin to Enamel after External Bleaching

Published Online: Jun 18, 2024

Page range: 298 - 303

Received: Mar 08, 2024

Accepted: Apr 16, 2024

DOI: https://doi.org/10.3889/oamjms.2024.11893

KeywordsAntioxidant, Chitosan nanoparticle, External bleaching, Shear bond strength

© 2024 Diatri Nari Ratih et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial 4.0 International License.

Keywords
Antioxidant, Chitosan nanoparticle, External bleaching, Shear bond strength