GALLIUM ALLOYS AS DENTAL RESTORATIVE MATERIALS

描述（改编自研究者摘要）：由于 围绕使用含汞汞合金作为 修复材料，有必要开发一种廉价的后部 可用于替代牙科汞合金的修复替代品 而不牺牲患者的利益。 本报告的总体目标 研究是确定合金粉末和液体镓合金组合 其生产生物相容的临床相关材料， 牙齿修复所需的化学和物理性质。 具体 目的包括：反应动力学和机制的研究;物理和 临床相关材料的机械性能表征; 合金的热稳定性和腐蚀行为; 开发的合金。 为了实现这些目标，研究人员打算 使用SEM/XEDA、WDS、XRD、DTA/DSC和细胞培养技术。 的 要检验的假设是，实验粉末的混合合金 而镓基液态合金可以具有机械性能 强度和其他性能达到类似或上级于 领先的高铜汞合金

DESCRIPTION (adapted from the Investigator's abstract): Because of the controversy surrounding the use of mercury-containing amalgam as a restorative material, there is a need to develop an inexpensive posterior restorative alternative which can be used in place of dental amalgam without sacrificing benefits to the patient. The overall objective of this research is to identify alloy powder and liquid gallium alloy combinations which produce biocompatible, clinically-relevant materials with the chemical and physical properties needed for a dental restoration. Specific aims include: a study of reaction kinetics and mechanisms; physical and mechanical property characterization of clinically relevant materials; thermal stability and corrosion behavior of the alloys; and cytotoxicity of the developed alloys. To achieve these aims, the investigators intend to use SEM/XEDA, WDS, XRD, DTA/DSC, and cell culture techniques. The hypothesis to be tested is that a mixed alloy of an experimental powder without noble metals and a gallium-based liquid alloy can have mechanical strengths and other properties at levels similar to or superior to those of leading high-copper amalgams.