未经授权:多年来,对牙科聚合物的要求仅限于惯性填充空腔和恢复形式,函数,和美学。广泛增强了无机填料体系,以最大程度地提高机械性能并优化精加工和抛光程序。替代光引发剂体系的发展也提高了碳-碳双键的转化率,增加生物相容性,磨损,和抗污性。然而,尽管取得了值得称赞的进步,牙科修复的临床寿命仍然有限,他们的更换是全球牙科诊所最常见的手术。在过去的几年里,具有适应生理刺激潜力的材料的开发已成为将牙科聚合物提升到更高卓越水平的关键步骤。在这种情况下,使用具有自修复特性的聚合物网络来控制微裂纹的传播是提高牙科修复物寿命的有吸引力的策略。这篇综述旨在报告当前外部自修复牙科聚合物的最新技术,并为进一步发展开辟新途径提供见解。介绍了自修复聚合物系统的一般分类,重点是当前用于抑制牙科聚合物中微裂纹扩展并恢复其结构完整性和韧性的外在策略。
未经授权:使用PubMed进行了电子搜索,谷歌学者,和Scopus数据库。仅包括以英语发表的有关外来自修复聚合物系统的研究。
未经评估:自愈材料在牙科领域仍处于起步阶段,未来的可能性几乎是无限的。虽然口腔是一个独特的环境,修复材料必须经过化学处理,物理,机械挑战,这限制了一些可能损害其物理化学性能的策略的使用,有无数未开发的机会来克服当前系统的挑战并推进该领域。
UNASSIGNED: For many years, the requirements for dental polymers were limited to inertially filling the cavity and restoring form, function, and esthetics. Inorganic filler systems were widely enhanced to maximize the mechanical properties and optimize finishing and polishing procedures. The development of alternative photoinitiator systems also improved the carbon-carbon double bond conversion, increasing biocompatibility, wear, and stain resistance. However, despite laudable progress, the clinical life span of dental restorations is still limited, and their replacement is the most common procedure in dental offices worldwide. In the last few years, the development of materials with the potential to adapt to physiological stimuli has emerged as a key step to elevating dental polymers to a higher excellence level. In this context, using polymeric networks with self-healing properties that allow for the control of the propagation of microcracks is an appealing strategy to boost the lifetime of dental restorations. This review aims to report the current state-of-the-art of extrinsic self-healing dental polymers and provide insights to open new avenues for further developments. General classification of the self-healing polymeric systems focusing on the current extrinsic strategies used to inhibit microcracks propagation in dental polymers and recover their structural integrity and toughness are presented.
UNASSIGNED: An electronic search was perfomed using PubMed, Google Scholar, and Scopus databases. Only studies published in English on extrinsic self-healing polymeric systems were included.
UNASSIGNED: Self-healing materials are still in their infancy in dentistry, and the future possibilities are almost limitless. Although the mouth is a unique environment and the restorative materials have to survive chemical, physical, and mechanical challenges, which limits the use of some strategies that might compromise their physicochemical performance, there are countless untapped opportunities to overcome the challenges of the current systems and advance the field.