Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas, Piracicaba, SP, Brazil.
Eur J Oral Sci. 2021 Apr;129(2):e12773. doi: 10.1111/eos.12773. Epub 2021 Mar 16.
This review compiles the literature on the antioxidants used after tooth bleaching with either low or high-concentrated carbamide and hydrogen peroxide to recover the bond strength. Antioxidants used in bleached teeth are mainly natural and non-enzymatic, except for catalase. Commonly, antioxidants are applied to remove any reactive oxygen species (ROS) residues left from bleaching gels, which adversely affect adhesive procedures, such as restorations or orthodontic brackets bonding. Even though sodium ascorbate, the most thoroughly investigated antioxidant, showed the most efficient bond strength recovery at 10% concentration, its performance depends on the type of solution and the application time. Natural extracts, such as proanthocyanidins and green tea, showed satisfactory results in the reversal of bond strength at 5% and 10% concentrations, respectively. Sodium ascorbyl phosphate, α-tocopherol, and catalase exhibited promising results, but further research is required. The adhesive system type plays an important role in the outcome of enamel bond strength after the antioxidant application. The postponement of either restorations or orthodontic brackets cementation following bleaching procedures seems to be efficiently replaced by antioxidant application prior to bonding procedures. However, the efficacy of using an antioxidant to recover bond strength depends on its type and application time.
这篇综述汇总了关于使用低浓度或高浓度脲素和过氧化氢进行牙齿漂白后使用抗氧化剂来恢复粘结强度的文献。在漂白过的牙齿中使用的抗氧化剂主要是天然的和非酶的，除了过氧化氢酶。通常，抗氧化剂被用于去除从漂白凝胶中残留的任何活性氧（ROS）残留物，这些残留物会对粘结程序（如修复或正畸托槽粘结）产生不利影响。尽管经过深入研究的抗坏血酸钠在 10%浓度下显示出最有效的粘结强度恢复，但它的性能取决于溶液类型和应用时间。天然提取物，如原花青素和绿茶，分别在 5%和 10%浓度下显示出令人满意的粘结强度恢复效果。抗坏血酸钠磷酸盐、α-生育酚和过氧化氢酶也表现出了有前途的结果，但仍需要进一步的研究。粘结系统类型在抗氧化剂应用后牙釉质粘结强度的结果中起着重要作用。在漂白程序之后推迟修复或正畸托槽的粘结似乎可以通过在粘结程序之前应用抗氧化剂来有效地替代。然而，使用抗氧化剂来恢复粘结强度的效果取决于其类型和应用时间。
