*Miguel Ángel Saravia-Rojas, DDS, MSc, PhD, full professor, School of Dentistry, Cayetano Heredia University, Lima, Peru.
Giulianna Espinoza-Jiménez, undergraduate student, School of Dentistry, Cayetano Heredia University, Lima, Peru.
Oper Dent. 2023 Sep 1;48(5):476-482. doi: 10.2341/22-127-S.
Conservative restorative dentistry has been evolving in the last 25 years, focusing mainly on the development of direct restorative materials. Resin-based composites remain an excellent conservative alternative for restoration of teeth with extensive caries lesions. Over time, several strategies have been proposed to improve the mechanical properties of these composites so that they can adequately withstand masticatory forces. Glass fiber-reinforced resin-based composites and their use in situations where there is great loss of tooth structure have gained popularity due to their favorable mechanical properties. Combined techniques with polyethylene fibers can further enhance their clinical performance. This study presents a brief review of their most important qualities and potential use in direct restorative procedures. In addition, a clinical case is described where a vital tooth with extensive coronal destruction was restored using polyethylene fibers embedded in glass fiber-reinforced flowable resin under resin-based composite. The reinforcement of both the remaining tooth structure and the restoration with fibers is a valid treatment option since the network structure formed by the fiber reinforcement can increase the longevity of the direct composite restorations. There are few reports in the literature describing the use of a combined technique using polyethylene fibers embedded in glass fiber-reinforced flowable resin under resin-based composite. Thus, clinical follow-up of this case is required.
在过去的 25 年中，保守修复牙科一直在发展，主要专注于直接修复材料的开发。树脂基复合材料仍然是广泛龋损牙齿修复的绝佳保守选择。随着时间的推移，已经提出了几种策略来提高这些复合材料的机械性能，以便它们能够充分承受咀嚼力。由于玻璃纤维增强型树脂基复合材料具有良好的机械性能，因此在牙齿结构大量丧失的情况下使用它们变得越来越受欢迎。与聚乙烯纤维结合的技术可以进一步提高它们的临床性能。本文简要回顾了它们最重要的特性及其在直接修复程序中的潜在用途。此外，还描述了一个临床病例，其中一颗有广泛冠部破坏的活髓牙使用嵌入玻璃纤维增强型可流动树脂中的聚乙烯纤维进行修复，然后再使用树脂基复合材料。用纤维增强剩余牙结构和修复体是一种有效的治疗选择，因为纤维增强形成的网络结构可以增加直接复合修复体的使用寿命。文献中很少有描述在树脂基复合材料下嵌入玻璃纤维增强型可流动树脂中的聚乙烯纤维联合技术的使用报告。因此，需要对该病例进行临床随访。
