本工作采用高分辨率透射电子显微镜对正常人牙釉质表层及早期釉质龋表层下的微晶进行观察,本工作结果表明,通过高能电子的轰击羟基磷灰石微晶所受到辐射作用模拟龋损的动态过程,对人牙早期釉质龋变的机理研究有可能提供新的途径。通过大量观察发现:早期釉质龋表层下绝大多数微晶在靠近中央区域已经脱矿,见图A_1。 In this work, high-resolution transmission electron microscopy was used to observe the normal human enamel surface and early enamel caries under the surface of the microcrystalline were observed, the results show that high energy electron bombardment of hydroxyapatite microcrystals by radiation effects of simulated carious lesions The dynamic process of human enamel caries on the mechanism of early may provide new avenues. Through extensive observation, it was found that most of the crystallites under the early enamel carious surface had been demineralized near the central area, as shown in Figure A_1.