3D打印激光快速成型牙种植体的制备及其机械性能分析

发布时间：2018-09-10 16:12

【摘要】：目的:应用3D打印快速成型技术制备钛合金牙种植体并探讨其机械性能,为应用3D打印技术制备个性化牙种植体提供依据。方法:计算机上建立牙种植体及标准试件模型,应用3D打印激光快速成型技术制备钛合金牙种植体及标准试件,通过X射线衍射(XRD)、能量色散X射线光谱(EDS)分析3D打印钛合金种植体材料相组成,采用金相显微镜和扫描电镜观察其组织形貌,采用显微硬度测试仪和拉伸实验检测材料的机械性能。结果:3D打印钛合金种植体微观结构均匀。材料拉伸强度和屈服强度分别为(1 821.7±146.2)Mpa和(1 355.9±109.2)Mpa,延伸率为(31.3±1.8)%,维氏硬度为372.93~428.46HV,机械性能符合国家牙种植体材料医用标准。结论:3D打印快速成型技术制备的钛合金材料可满足牙种植体材料要求,有望在牙种植体制备和个性化即刻种植领域得到广泛应用。
[Abstract]:Objective: to study the mechanical properties of titanium alloy dental implants by using 3D printing rapid prototyping technology, and to provide the basis for the preparation of personalized dental implants by 3D printing technology. Methods: the models of dental implants and standard specimens were established on the computer. Titanium alloy dental implants and standard specimens were prepared by 3D printing laser rapid prototyping. The phase composition of 3D printed titanium alloy implant was analyzed by X-ray diffraction (XRD),) energy dispersive X-ray spectroscopy (EDS), and the microstructure was observed by metallographic microscope and scanning electron microscope. The mechanical properties of the material were tested by microhardness tester and tensile test. Results the microstructure of titanium alloy implant was uniform. The tensile strength and yield strength of the materials were (1 821.7 卤146.2) Mpa and (1 355.9 卤109.2) Mpa, elongation, respectively, and Vickers hardness were 372.93 and 428.46 HV.The mechanical properties were in line with the national medical standards for dental implants. The tensile strength and yield strength of the materials were (1 821.7 卤146.2) Mpa and (1 355.9 卤109.2) Mpa, respectively. Conclusion the titanium alloy material prepared by the rapid prototyping technique of 30% 3D printing can meet the requirements of dental implants, and it is expected to be widely used in the field of dental implants and personalized immediate implants.
【作者单位】：吉林大学中日联谊医院口腔科;
【基金】：吉林省科技厅科研基金资助课题(20150204)
【分类号】：R783.6

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