功能梯度多孔牙种植体的设计与制造

IF 1 Q4 ENGINEERING, MANUFACTURING Journal of Micro and Nano-Manufacturing Pub Date : 2022-06-27 DOI:10.1115/msec2022-85426
Rana Dabaja, B. Popa, Sun‐Yung Bak, G. Mendonça, M. Banu
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引用次数: 0

摘要

牙种植体是一种为填补缺失的牙齿而制作的与天然牙齿相匹配的假牙。目前的牙种植体在患有影响口腔区域疾病的患者中失败的风险很高。当患者患有上述一种或多种疾病时,骨和植入物之间的界面受损,患者成功率低或剩余骨结构不足。本研究的目的是创造一种既适合健康患者又适合不健康患者的植牙技术。在研究的溶液中,在Ti6Al4V种植体中诱导孔隙被证明可以模拟天然骨的材料特性,从而增强骨整合。我们计划创造一种具有增强骨整合的创新解决方案,以确保机械性能的梯度。采用选择性激光熔化(SLM)增材制造方法制备了复杂几何形状的孔诱导牙种植体。在本研究中,利用晶格状孔隙模拟骨的结构,设计了一种功能梯度多孔盘。利用50微米孔径的孔隙制备了多个样品,并进行了打印研究,以测试SLM机器的性能和样品的分辨率。结果表明,参数对设计的打印分辨率有一定的影响。在选择性熔融过程中,通过锁孔效应诱发额外孔隙。
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Design and Manufacturing of a Functionally Graded Porous Dental Implant
Dental implants are a prosthesis for missing teeth that are made to match a natural tooth. Current dental implants experience a high risk of failure in patients that have diseases affecting the oral region. When the patient experiences one or more of these diseases, the interface between the bone and implant is compromised and patients can experience low success rates or insufficient remaining bone structure. The purpose of this research is to create a dental implant technology that is suitable for both healthy and unhealthy patients. In the solutions studied, inducing pores into the Ti6Al4V implant proved to mimic the material properties of natural bone resulting in enhanced osseointegration. We plan to create an innovative solution with enhanced osseointegration that will ensure a gradient in mechanical properties. The complex geometry of the pore-induced dental implant is manufactured using the additive manufacturing method of selective laser melting (SLM). In this research, a functionally graded porous disk was designed using lattice-like pores to mimic the structure of bone. Multiple samples were created with 50-micron pores and printing was studied to test the capabilities of the SLM machine and resolution of the samples. It was found that the parameters play a role in the print resolution of the design. Additional porosity was induced through a keyhole effect during selective melting process.
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来源期刊
Journal of Micro and Nano-Manufacturing
Journal of Micro and Nano-Manufacturing ENGINEERING, MANUFACTURING-
CiteScore
2.70
自引率
0.00%
发文量
12
期刊介绍: The Journal of Micro and Nano-Manufacturing provides a forum for the rapid dissemination of original theoretical and applied research in the areas of micro- and nano-manufacturing that are related to process innovation, accuracy, and precision, throughput enhancement, material utilization, compact equipment development, environmental and life-cycle analysis, and predictive modeling of manufacturing processes with feature sizes less than one hundred micrometers. Papers addressing special needs in emerging areas, such as biomedical devices, drug manufacturing, water and energy, are also encouraged. Areas of interest including, but not limited to: Unit micro- and nano-manufacturing processes; Hybrid manufacturing processes combining bottom-up and top-down processes; Hybrid manufacturing processes utilizing various energy sources (optical, mechanical, electrical, solar, etc.) to achieve multi-scale features and resolution; High-throughput micro- and nano-manufacturing processes; Equipment development; Predictive modeling and simulation of materials and/or systems enabling point-of-need or scaled-up micro- and nano-manufacturing; Metrology at the micro- and nano-scales over large areas; Sensors and sensor integration; Design algorithms for multi-scale manufacturing; Life cycle analysis; Logistics and material handling related to micro- and nano-manufacturing.
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