DENTIST SCIENTIST AWARD--INDIVIDUAL

口腔内应用树脂-金属粘接的初始粘结强度 是相当好的，但结合强度会随着时间的推移而下降，并在潮湿条件下失效 环境和/或热循环。人们对基础知识知之甚少 这种粘合系统的化学性质。假设1) 树脂与金属的粘结是由于表面的润湿和通过共聚的粘结而存在的. 单体添加到树脂基质中，以及2)树脂的降解- 金属键与时间在水中是酸碱驱动反应的结果。 在界面处导致金属表面氧化物降解。这个 拟议的研究将阐明现有的化学键存在 在树脂-金属界面，或更合适的界面通过 各种表面分析技术，有些已经很成熟，有些 新的。长期目标将是准确预测 建议的粘接系统，以及定制设计的能力 粘合剂和粘合系统。这方面的申请将是 适用于正畸托槽的良好口内牙-金属粘接 和辅助物、冠内修复体、冠、桥、夹板 以及包括假体关节在内的其他生物力学应用 接班人。

Initial bond strengths on resin-metal bonding for intra-oral applications are quite good, however bond strengths decrease with time and fail in wet environments and or thermocycling. Little is understood about the basic chemical nature of this adhesive system. It is hypothesized that 1) resin-metal bonding exists due to surface wetting and bonding via co- monomer additions to the resin matrix, and 2) that degradation of resin- metal bonds with time in water is a result of acid-base driven reactions at the interphase causing a degradation in the metal surface oxide. The proposed research will illucidate the existing chemical bonding existing at the resin-metal interface, or more appropriate interphase through various surface analytical techniques, some well established and some new. The long term goal will be to accurately predict the behavior of proposed adhesive systems, as well as the ability to custom design adhesives and adhesive systems. The application for this will be superior intraoral tooth-metal bonding applicable to orthodontic brackets and auxiliaries, intracoronal restorations, crowns, bridges, splint, as well as other biomechanical applications including prosthetic joint replacements.