Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding
Abstract Radicals from tooth whitening products can reduce bond strength, posing challenges for dentists when a bonding procedure must be performed in teeth immediately after whitening. This study aimed to evaluate the antioxidant activity (AA) of Terminalia catappa Linn (TCL) leaf extract as a pote...
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| Format: | Article |
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Sociedade Brasileira de Pesquisa Odontológica
2025-06-01
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| Series: | Brazilian Oral Research |
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| Online Access: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242025000100455&lng=en&tlng=en |
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| author | Verónica Cecilia MEJÍA Vitória Moraes MARQUES Tamara Gonçalves de ARAÚJO Lara Cecília de MOURA Ana Cristina de Mello FIALLOS Mary Anne Sampaio de MELO Sérgio Lima SANTIAGO Vanara Florêncio PASSOS |
| author_facet | Verónica Cecilia MEJÍA Vitória Moraes MARQUES Tamara Gonçalves de ARAÚJO Lara Cecília de MOURA Ana Cristina de Mello FIALLOS Mary Anne Sampaio de MELO Sérgio Lima SANTIAGO Vanara Florêncio PASSOS |
| author_sort | Verónica Cecilia MEJÍA |
| collection | DOAJ |
| description | Abstract Radicals from tooth whitening products can reduce bond strength, posing challenges for dentists when a bonding procedure must be performed in teeth immediately after whitening. This study aimed to evaluate the antioxidant activity (AA) of Terminalia catappa Linn (TCL) leaf extract as a potential agent to mitigate the negative impact of high-concentration whitening agents on immediate bonding performance. The AA of green and ripe leaf extracts was measured using the 2,2-di-phenyl-1-picrylhydrazyl radical scavenging capacity assay (DPPH). To determine the TCL influence on bond strength, six groups of bovine enamel blocks (n=10) were created. Group 1 was the positive control (unbleached enamel), while Group 2 was the negative control (no antioxidant treatment). Groups 3 to 6 were bleached and treated with 10% sodium ascorbate (SA) or 0.1%, 0.2%, and 0.3% TCL gels. Adhesion was conducted using a two-step conventional system and dental composite resin. Microtensile testing was performed after 24 hours, and data were analyzed by one-way ANOVA with Tukey’s post hoc test (p > 0.05). From the DPPH assay, results with IC50 < 50 µg/mL indicate high AA for all tested extracts. This method established a difference of around 12 times more AA for the TCL-hydroalcoholic extract of green leaf to the aqueous extract of ripe leaves. There were no significant differences in bond strength among groups treated with TCL-hydroalcoholic extract of green leaf gels (p > 0.05) and unbleached enamel. Tropical almond-derived antioxidant gels emerge as a promising strategy to enhance immediate bond strength on enamel after high-concentration in-office whitening treatments. |
| format | Article |
| id | doaj-art-3eb4c5bf346a4c92b00d175b84c75f9b |
| institution | Kabale University |
| issn | 1807-3107 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | Sociedade Brasileira de Pesquisa Odontológica |
| record_format | Article |
| series | Brazilian Oral Research |
| spelling | doaj-art-3eb4c5bf346a4c92b00d175b84c75f9b2025-08-20T03:28:17ZengSociedade Brasileira de Pesquisa OdontológicaBrazilian Oral Research1807-31072025-06-013910.1590/1807-3107bor-2025.vol39.072Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bondingVerónica Cecilia MEJÍAhttps://orcid.org/0009-0001-9095-0899Vitória Moraes MARQUEShttps://orcid.org/0009-0003-3250-7914Tamara Gonçalves de ARAÚJOhttps://orcid.org/0000-0002-1360-479XLara Cecília de MOURAhttps://orcid.org/0009-0004-2823-632XAna Cristina de Mello FIALLOShttps://orcid.org/0000-0003-2227-809XMary Anne Sampaio de MELOhttps://orcid.org/0000-0002-0007-2966Sérgio Lima SANTIAGOhttps://orcid.org/0000-0002-6808-092XVanara Florêncio PASSOShttps://orcid.org/0000-0001-5121-0436Abstract Radicals from tooth whitening products can reduce bond strength, posing challenges for dentists when a bonding procedure must be performed in teeth immediately after whitening. This study aimed to evaluate the antioxidant activity (AA) of Terminalia catappa Linn (TCL) leaf extract as a potential agent to mitigate the negative impact of high-concentration whitening agents on immediate bonding performance. The AA of green and ripe leaf extracts was measured using the 2,2-di-phenyl-1-picrylhydrazyl radical scavenging capacity assay (DPPH). To determine the TCL influence on bond strength, six groups of bovine enamel blocks (n=10) were created. Group 1 was the positive control (unbleached enamel), while Group 2 was the negative control (no antioxidant treatment). Groups 3 to 6 were bleached and treated with 10% sodium ascorbate (SA) or 0.1%, 0.2%, and 0.3% TCL gels. Adhesion was conducted using a two-step conventional system and dental composite resin. Microtensile testing was performed after 24 hours, and data were analyzed by one-way ANOVA with Tukey’s post hoc test (p > 0.05). From the DPPH assay, results with IC50 < 50 µg/mL indicate high AA for all tested extracts. This method established a difference of around 12 times more AA for the TCL-hydroalcoholic extract of green leaf to the aqueous extract of ripe leaves. There were no significant differences in bond strength among groups treated with TCL-hydroalcoholic extract of green leaf gels (p > 0.05) and unbleached enamel. Tropical almond-derived antioxidant gels emerge as a promising strategy to enhance immediate bond strength on enamel after high-concentration in-office whitening treatments.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242025000100455&lng=en&tlng=enReactive Oxygen SpeciesHydrogen PeroxideAscorbic AcidDental CementsDental AdhesivesDental Enamel |
| spellingShingle | Verónica Cecilia MEJÍA Vitória Moraes MARQUES Tamara Gonçalves de ARAÚJO Lara Cecília de MOURA Ana Cristina de Mello FIALLOS Mary Anne Sampaio de MELO Sérgio Lima SANTIAGO Vanara Florêncio PASSOS Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding Brazilian Oral Research Reactive Oxygen Species Hydrogen Peroxide Ascorbic Acid Dental Cements Dental Adhesives Dental Enamel |
| title | Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding |
| title_full | Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding |
| title_fullStr | Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding |
| title_full_unstemmed | Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding |
| title_short | Tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding |
| title_sort | tropical almond antioxidant gels mitigate the adverse effects of strong whitening agents on immediate bonding |
| topic | Reactive Oxygen Species Hydrogen Peroxide Ascorbic Acid Dental Cements Dental Adhesives Dental Enamel |
| url | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242025000100455&lng=en&tlng=en |
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