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Antioxidant pre-treatments are able to reduce waiting time for restorative treatment after dental bleaching: a microtensile bond strength exploratory study
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Advisor(s)
Abstract(s)
The aim was to evaluate the effect of different antioxidant agents on the improvement of bond strength to enamel subjected to a whitening procedure. Samples were divided into six groups (n = 10): control; whitening immediately followed by restorative treatment (WHT); whitening and restoration after a 7-day period (WHT_7D); whitening and application of 10% sodium ascorbate (WHT_SA); application of 5% grape seed extract (WHT_GS); and application of 5% green tea (WHT_GT). All groups except for control fwere whitened (Opalescence PF Regular 16%) for 7 days (4 h/day). All samples were restored (Optibond™ FL, Kerr and Filtek™ Z250 composite, 3M ESPE). In antioxidant groups these were applied for 15 min and immediately restored. Specimens were sectioned in microspecimens (1.0 ± 0.2 mm2 area) for microtensile bond strength (μTBS) testing (0.5 mm/min) on a universal testing machine. ANOVA test with Brown-Forsythe correction and Games-Howell post-hoc test was used (significance level of 5%). Antioxidant groups presented significant higher mean μTBS values than group WHT (p < 0.001). The non-whitened control group was not significantly different to antioxidant experimental groups. Group WHT_7D exhibited a significantly higher mean μTBS value when compared to group WHT (p = 0.022). The different antioxidants significantly influenced microtensile bond strength of restored teeth after whitening.
Description
Keywords
Antioxidant Bond strenght Dental bleaching Dental whitening Sodium ascorbate Grape seed extract Green tea
Pedagogical Context
Citation
Lobo, S., Santos, I.C., Delgado, A.H.S. et al. Antioxidant pre-treatments are able to reduce waiting time for restorative treatment after dental bleaching: a microtensile bond strength exploratory study. Appl Adhes Sci 9, 4 (2021). https://doi.org/10.1186/s40563-021-00134-x
Publisher
Springer Nature