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Effective application duration of sodium ascorbate antioxidant in reducing microleakage of bonded composite restoration in intracoronally-bleached teeth
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Jae-Young Park, Tae-Yub Kwon, Young-Kyung Kim
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Restor Dent Endod 2013;38(1):43-47. Published online February 26, 2013
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DOI: https://doi.org/10.5395/rde.2013.38.1.43
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 Abstract
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- Objectives
The aim of this study was to determine an appropriate application duration of sodium ascorbate (SA) antioxidant gel in reducing microleakage of bonded composite restoration in intracoronally-bleached teeth. Materials and MethodsEighty endodontically-treated human incisors were randomly divided into eight groups: control, no bleaching; IB and DB, immediate and delayed bonding after bleaching, respectively; S10m, S60m, S24h, S3d and S7d, bleaching + SA gel for 10 min, 60 min, 24 hr, 3 day and 7 day, respectively. For bleaching, a mixture of 30% hydrogen peroxide and sodium perborate was applied for 7 day. All access cavities were restored using One-Step adhesive (Bisco Inc.) and then Aelite LS Packable composite (Bisco Inc.). The bonded specimens were subjected to 500 thermal cycles, immersed in 1% methylene blue for 8 hr, and longitudinally sectioned. Microleakage was assessed with a 0 - 4 scoring system and analyzed using nonparametric statistical methods (α = 0.05). ResultsGroup IB showed a significantly higher microleakge than the control group (p = 0.006) and group DB a statistically similar score to the control group (p > 0.999). Although groups S10m, S60m, and S24h exhibited significantly higher scores than group DB (p < 0.05), the microleakage in groups S3d and S7d was statistically similar to that in group DB (p = 0.771, p > 0.999). ConclusionsApplication of SA gel for 3 day after nonvital bleaching was effective in reducing microleakage of composite restoration in intracoronally-bleached teeth.
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Citations
Citations to this article as recorded by  - Evaluation of the effect of the application of Quercus cerris extract and the use of fluoride bonding material on the bonding strength of orthodontic brackets after tooth bleaching with hydrogen peroxide
Ezgi Ay, Derya Dursun
PeerJ.2025; 13: e19335. CrossRef - Effect of Herbal Antioxidant on Push-out Bond Strength of Resin-based Composite to Dentin after Intracoronal Bleaching: An In Vitro Study
Parinitha MS, Akshay G, Vidya G. Doddawad, Ashwini Tumkur Shivakumar, Sowmya Halasabalu Kalgeri
Journal of Pharmacology and Pharmacotherapeutics.2024;[Epub] CrossRef - Photon-Induced Photoacoustic Streaming Activation of the Postbleaching Antioxidant Application Rapidly Improves Bonding to Pulp Chamber Dentin
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Journal of Advanced Oral Research.2021; 12(1): 57. CrossRef - Influence of a short‐time antioxidant application on the dentin bond strength after intracoronal bleaching
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Microscopy Research and Technique.2019; 82(10): 1720. CrossRef - Composite resin shear bond strength on bleached dentin increased by 35% sodium ascorbate application
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Restorative Dentistry & Endodontics.2016; 41(1): 44. CrossRef - Influence of Ethanol Pretreatment on the Bonding of Resin Composite to Bleached Dentin
Ga-Eun Son, Tae-Yub Kwon, Young Kyung Kim
Korean Journal of Dental Materials.2015; 42(4): 279. CrossRef - Effect of 35% Sodium Ascorbate Treatment on Microtensile Bond Strength after Nonvital Bleaching
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Journal of Endodontics.2014; 40(10): 1668. CrossRef - Pull-out bond strength of a self-adhesive resin cement to NaOCl-treated root dentin: effect of antioxidizing agents
Maryam Khoroushi, Marzieh Kachuei
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