Comparative Analysis of Various Antioxidants for Rehabilitating the Shear Bond Strength of Composite Resin to Bleached Enamel: An In Vitro Study.
- 1Department of Conservative Dentistry and Endodontics, Malla Reddy Dental College for Women, Hyderabad, IND.
Abstract
Aim
The aim was to evaluate and compare the impact of applying quercetin, myricetin, and carvedilol after bleaching on the shear bond strength (SBS) of composite resin to enamel.Methods and materials
In this in vitro study, 50 intact single-rooted teeth were randomly allocated into five experimental groups as follows (n = 10): Group A (negative control): no bleaching, Group B (positive control): bleaching with 37.5% hydrogen peroxide, Group C: hydrogen peroxide ± 1% quercetin for 10 minutes, Group D: hydrogen peroxide ± 2.5% carvedilol for 10 minutes, and Group E: hydrogen peroxide ± 1% myricetin for 10 minutes. Bonding with resin composite was carried out without delay following bleaching for Groups B through E, whereas Group A underwent bonding without any prior treatment. Each specimen was assessed for SBS using a universal testing machine after being stored for 24 hours in distilled water kept at room temperature. Tukey's post hoc test and one-way analysis of variance were used to evaluate the SBS values for each group.Results
The unbleached group showed the greatest mean SBS for composite bonding, according to the data. Quercetin showed the lowest SBS among the antioxidant-treated groups; the carvedilol-treated group showed the highest SBS value, and the difference in SBS between the myricetin and carvedilol groups was not statistically significant.Conclusions
It was concluded from the data that a 10-minute application of 2.5% carvedilol improved the bond strength to bleached enamel, nearly restoring it to pre-bleaching levels.
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BibTeX
@article{gurijala2026comparative,
title = {{Comparative Analysis of Various Antioxidants for Rehabilitating the Shear Bond Strength of Composite Resin to Bleached Enamel: An In Vitro Study.}},
author = {Ravali Gurijala and Swathi Aravelli and Sivaram Penigalapati and S Srija Mili and Swetha Kasam and Nimeshika Ramachandruni},
journal = {Cureus},
year = {2026},
month = oct,
doi = {10.7759/cureus.117348},
url = {https://europepmc.org/article/MED/42968865},
note = {CC BY},
}
RIS
TY - JOUR
TI - Comparative Analysis of Various Antioxidants for Rehabilitating the Shear Bond Strength of Composite Resin to Bleached Enamel: An In Vitro Study.
AU - Ravali Gurijala
AU - Swathi Aravelli
AU - Sivaram Penigalapati
AU - S Srija Mili
AU - Swetha Kasam
AU - Nimeshika Ramachandruni
PY - 2026
DA - 2026/10/02
JO - Cureus
DO - 10.7759/cureus.117348
UR - https://europepmc.org/article/MED/42968865
AB - Aim The aim was to evaluate and compare the impact of applying quercetin, myricetin, and carvedilol after bleaching on the shear bond strength (SBS) of composite resin to enamel.Methods and materials In this in vitro study, 50 intact single-rooted teeth were randomly allocated into five experimental groups as follows (n = 10): Group A (negative control): no bleaching, Group B (positive control): bleaching with 37.5% hydrogen peroxide, Group C: hydrogen peroxide ± 1% quercetin for 10 minutes, Group D: hydrogen peroxide ± 2.5% carvedilol for 10 minutes, and Group E: hydrogen peroxide ± 1% myricetin for 10 minutes. Bonding with resin composite was carried out without delay following bleaching for Groups B through E, whereas Group A underwent bonding without any prior treatment. Each specimen was assessed for SBS using a universal testing machine after being stored for 24 hours in distilled water kept at room temperature. Tukey's post hoc test and one-way analysis of variance were used to evaluate the SBS values for each group.Results The unbleached group showed the greatest mean SBS for composite bonding, according to the data. Quercetin showed the lowest SBS among the antioxidant-treated groups; the carvedilol-treated group showed the highest SBS value, and the difference in SBS between the myricetin and carvedilol groups was not statistically significant.Conclusions It was concluded from the data that a 10-minute application of 2.5% carvedilol improved the bond strength to bleached enamel, nearly restoring it to pre-bleaching levels.
SN - 2168-8184
ER -