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Biodegradation of resin composites and adhesives by oral bacteria and saliva: A rationale for new material designs that consider the clinical environment and treatment challenges

机译:口腔细菌和唾液对树脂复合材料和粘合剂的生物降解:考虑临床环境和治疗挑战的新材料设计的基本原理

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摘要

Objective. To survey the recent literature from the late 1980s to recent years in order to assess the relationship between resin degradation, catalyzed by biological factors, and clinical failure outcomes such as marginal breakdown. Methods. The literature shows that degradation occurs in many manufacturers' products despite varied vinyl acrylate compositions. The authors examine salivary enzyme activity and their ability to degrade the polymeric matrix of resin composites and adhesives, as well as oral microorganisms that can promote demineralization of the tooth surface at the marginal interface. A survey of recent research relating matrix metalloproteinase (MMPs) to the degradation of the exposed collagen at the dentin adhesive interface is also discussed in the context of marginal breakdown. Results. The literature provides strong support that together, the above factors can breakdown the marginal interface and limit the longevity of resin composite restorations. The authors have found that the field's current understanding of resin biodegradation in the oral cavity is just beginning to grasp the role of bacteria and enzymes in the failure of resin-based restorations. Significance. Knowledge of these biodegradation processes is pertinent to areas where innovative strategies in the chemistry of restorative materials are anticipated to enhance the longevity of resin composites.
机译:目的。为了调查1980年代末至最近几年的最新文献,以评估由生物因素催化的树脂降解与临床衰竭结果(如边缘衰竭)之间的关系。方法。文献表明,尽管丙烯酸乙烯酯组成不同,但许多制造商的产品仍会发生降解。作者研究了唾液酶的活性及其降解树脂复合材料和粘合剂的聚合物基体的能力,以及可以促进牙齿边缘界面脱矿质的口腔微生物。在边缘破坏的背景下,还讨论了有关基质金属蛋白酶(MMPs)与牙本质胶粘剂界面处暴露的胶原蛋白降解的最新研究综述。结果。文献提供了有力的支持,这些因素一起可以破坏边缘界面并限制树脂复合材料修复体的寿命。作者发现,该领域对口腔中树脂生物降解的当前了解才刚刚开始掌握细菌和酶在基于树脂的修复体失效中的作用。意义。对这些生物降解过程的了解与预期在修复材料化学方面的创新策略可以提高树脂复合材料的使用寿命有关。

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