牙釉质提取物合成材料的分析以及四环素改性的实验研究

Analysis of synthetic material of dental enamel and experimental study on modification of tetracycline

目的:探索牙釉质提取物合成材料的性质以及四环素改性的可行性。方法:选择猪牙釉质进行分离处理后,粉碎成粉末,然后分成两组:牙釉质粉末组、牙釉质粉末+四环素组。后者进行四环素改性处理。结果:牙釉质粉末经37%磷酸处理后显示主要结构是纳米纤维,形态上为六边形的晶体,以蜂窝状排列。经四环素改性后,牙釉质粉末的结晶度、压缩强度降低,且出现CO_3^(2-)吸收峰。磷灰石由单一的物像成分变成多种物像成分组成。结论:牙釉质提取物合成材料经四环素改性后在结晶度、微量成分、力学性能等方面出现一定变化,应正确认识四环素改性后牙釉质提取物合成材料发生的变化,并对其进行相关改进,为临床牙科修复材料的发展提供新的方向和空间。

Objective： To explore the properties of enamel extracts synthetic materials as well as the feasibility and tetracycline modification. Methods： The choice of the swine tooth enamel separate crushed into powder,and then divided into two groups： enamel powder group,enamel powder ＋ tetracyclin group; the latter of tetracyclines modification. Results： Enamel powder by 37% phosphoric acid treatment shows main structure of nano fibers,forms hexagonal crystals using honeycomb arrangement. Tetracycline modified enamel powder crystallinity,compressive strength decreased,and the absorption peak of CO3 2-.Like apatite by single component into a variety of image components. Conclusion： Synthetic materials extracted from enamel after tetracycline modification in crystallinity,trace elements and mechanical properties appear certain changes,should have a correct understanding of tetracycline changes of enamel extracts of synthetic materials,and carries on the improvement and development of clinical dental restorative materials provide a new direction and space.