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Polyphenols and Brazilian red propolis incorporated into a total-etching adhesive system help in maintaining bonding durability

2021; Elsevier BV; Volume: 7; Issue: 2 Linguagem: Inglês

10.1016/j.heliyon.2021.e06237

2405-8440

Isabel Cristina Celerino de Moraes Porto, Arthur Bezerra de Barros Rocha, Iverson Iago Soares Ferreira, Bruna Muritiba de Barros, Eryck Canabarra Ávila, Matheus Corrêa da Silva, Marcos Paulo Santana de Oliveira, Teresa de Lisieux Guedes Ferreira Lôbo, José Marcos dos Santos Oliveira, Ticiano Gomes do Nascimento, Jeniffer Mclaine Duarte de Freitas, Johnnatan Duarte de Freitas,

Dental Erosion and Treatment

The aim of this study was to evaluate the degree of conversion and bond strength of a commercial dental adhesive modified by the incorporation of quercetin, resveratrol (RES), and Brazilian red propolis (BRP).BRP markers were identified using ultra-performance liquid chromatography coupled with a diode array detector, and the antioxidant activity (AAO) of the three substances was analyzed. Single Bond 2 adhesive (3M ESPE) was modified by adding BRP, quercetin, and RES, separately, at 20 μg/mL, 250 μg/mL, and 500 μg/mL, respectively. The degree of conversion (DC) was measured using near-infrared spectroscopy 24 h after photopolymerization. Measurements of the resin-dentin microtensile bond strength (μTBS) were carried out after 1 day and 1 year. Student's t test and ANOVA with Tukey's test were used for data analysis (α = 0.05).The markers daidzein, liquiritigenin, pinobanksin, isoliquiritigenin, formononetin, pinocembrin, and biochanin A were found in the ethanolic extract of BRP. Quercetin, RES, and BRP showed high AAO. The DC of the tested adhesives remained adequate for this category of material, with a slight increase in the DC of adhesives with quercetin and BRP (P > 0.05). Comparisons between μTBS measurements made at 1 day and 1 year showed that, contrary to the control group, μTBS values for all modified adhesives were maintained after 1 year in distilled water (P > 0.05).These findings suggest that quercetin, RES, or BRP might be useful in adhesive dentistry to help improve hybrid layer resistance.Dentin bonding agents with quercetin, RES, and BRP have potential to increase the longevity of composite restorations.