初探选择性激光熔融钛表面的形态特征及机械性能

doi:10.12337/zgkqzzxzz.2022.03.006

中国口腔种植学杂志 ›› 2022, Vol. 27 ›› Issue (2): 82-86.DOI: 10.12337/zgkqzzxzz.2022.03.006

初探选择性激光熔融钛表面的形态特征及机械性能

王璇¹, 段彦盛¹, 宋爽², 王舒妍¹, 赵国强¹, 赵文爽¹, 杨瑞¹, 田欢¹, 刘向东¹, 陈旭涛¹, 丁锋¹, 宋应亮¹, 张思佳¹

¹军事口腔医学国家重点实验室国家口腔疾病临床医学研究中心陕西省口腔生物工程技术研究中心第四军医大学口腔医院口腔种植科,西安 710032;
²北京大学口腔医学院 100081

收稿日期:2021-12-01 出版日期:2022-04-30 发布日期:2022-05-07
通讯作者: 宋应亮,Email：songyingliang@163.com,电话：029-84776454;张思佳,Email：2380857628@qq.com,电话：029-84776454
作者简介:王璇,博士在读,研究方向：临床种植与相关风险因素以及激光技术在口腔种植中的应用;张思佳,副教授、副主任医师、硕士研究生导师,研究方向：临床种植与相关风险因素以及激光技术在口腔种植中的应用;宋应亮,教授、主任医师、博士研究生导师,研究方向：临床种植与相关风险因素以及激光技术在口腔种植中的应用
基金资助:
国家博士后科学基金（2019M653968）; 国家自然科学基金（81771107,82001022）

Surface characteristics and mechanical properties of titanium implant modified by selective laser melting technology

Wang Xuan¹, Duan Yansheng¹, Song Shuang², Wang Shuyan¹, Zhao Guoqiang¹, Zhao Wenshuang¹, Yang Rui¹, Tian Huan¹, Liu Xiangdong¹, Chen Xutao¹, Ding Feng¹, Song Yingliang¹, Zhang Sijia¹

¹State Key Laboratory of Military Stomatology & National Clinical Research Center for Oral Diseases&Shaanxi Engineering Research Center for Dental Materials and Advanced Manufacture, Department of Dental Implantology, School of Stomatology, the Fourth Military Medical University, Xi'an 710032, China;
²Peking University School and Hospital of Stomatology, Beijing 100081, China

Received:2021-12-01 Online:2022-04-30 Published:2022-05-07
Contact: Song Yingliang, Email: songyingliang@163.com, Tel: 0086-29-84776454; Zhang Sijia, Email: 2380857628@qq.com, Tel: 0086-29-84776454
Supported by:
China Postdoctoral Science Foundation（2019M653968）; National Natural Science Foundation of China（81771107, 82001022）

摘要/Abstract

摘要： 目的建立SLM处理钛种植体表面,通过机械性能及生物安全性实验探索其应用于种植体表面处理的可能性。方法制作种植体及钛片样本并分为SLM组,喷砂酸蚀（SLA）组和无处理组,观察表面微形貌,测量表面粗糙度,评价其机械性能。表面使用人牙龈成纤维细胞培养,观察细胞形态和生长增殖情况。结果 SLM组微表面呈蜂窝状、孔隙不规则、层次丰富、呈峰谷形状。SLM表面粗糙度最高,平均粗糙度为（0.908±0.015）μm,峰谷粗糙度为（1.589±0.1603）μm。机械强度适宜,平均压缩强度为（110±2.5）MPa。SLM表面生物安全性评价良好,人牙龈成纤维细胞的黏附生长正常。结论 SLM处理钛种植体表面生物安全性良好,且具有较高的表面粗糙度,机械强度合适。SLM处理钛种植体表面具有临床应用的潜质。

关键词: 选择性激光熔融, 种植体, 表面处理

Abstract: Objective To establish the surface of titanium implants treated by SLM, and explore the relevant mechanisms that may improve the osseointegration level of implants through in vitro experiments. Methods Implant and titanium sheet samples were prepared and divided into SLM group, sand blasting and acid etching (SLA) group and control group. Surface microtopography was observed, roughness was measured, and mechanical properties were evaluated. HGF-C339 cells was used to observe the morphology, growth and proliferation of surface cells. Results The surface of SLM group was honeycomb, with irregular pores, rich layers and peak-valley shape. roughness of SLM surface was the highest, the mean Ra value was（0.908±0.015）μm, the mean Rz value was（1.589±0.160.3）μm. SLM surface had suitable mechanical strength, the mean yield strengths were（110±2.5）MPa. SLM surface biosafety was well evaluated, and the adhesion growth of HGF-C339 cells was normal. Conclusion The surface of titanium implants treated with SLM has good bio-safety, high surface roughness, and suitable mechanical strength. The surface of titanium implants treated with SLM could be a new approach for surface treatment.

Key words: Selective laser melting, Implant, Surface treatment

王璇,段彦盛,宋爽,等. 初探选择性激光熔融钛表面的形态特征及机械性能[J]. 中国口腔种植学杂志, 2022, 27(2): 82-86. DOI: 10.12337/zgkqzzxzz.2022.03.006

Wang Xuan, Duan Yansheng, Song Shuang, Wang Shuyan, Zhao Guoqiang, Zhao Wenshuang, Yang Rui, Tian Huan, Liu Xiangdong, Chen Xutao, Ding Feng, Song Yingliang, Zhang Sijia. Surface characteristics and mechanical properties of titanium implant modified by selective laser melting technology[J].Chinese Journal of Oral Implantology, 2022, 27(2): 82-86.DOI: 10.12337/zgkqzzxzz.2022.03.006.

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初探选择性激光熔融钛表面的形态特征及机械性能

Surface characteristics and mechanical properties of titanium implant modified by selective laser melting technology

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