Journal of Prevention and Treatment for Stomatological Diseases ›› 2016, Vol. 24 ›› Issue (7): 402-406.doi: 10.12016/j.issn.2096-1456.2016.07.005

• Basic Study • Previous Articles     Next Articles

Study on design and manufacturing technology of titanium mandible custom-fitting surgical guides

Hong HUANG1,Gong ZHANG2(),Zhong-kai PENG2,3,Ya SHENG2,3,Peng ZHANG4,Da-hong HUANG4   

  1. 1. Nanfang Stomatological Hospital of Zhanjiang, Zhanjiang 524005, China
  • Received:2016-05-12 Revised:2016-06-12 Online:2016-07-20 Published:2016-07-20
  • Contact: Gong ZHANG E-mail:gong.zhang@giat.ac.cn

Abstract:

Objective To explore the technology of combination with computed tomography (CT), computer aided design (CAD), finite element analysis (FEA), and Selective Laser Melting (SLM) in manufacturing a titanium custom-fitting surgical guide well matched with the patient mandible in order to realize mold-free manufacturing. Methods A model of a custom-fitting surgical guide was built by CT scanning machine and Solidworks software, and then the model was imported into Ansys software to carry out simulation analysis with nonlinear contact method. Finally, the model above was imported to SLM molding equipment, the titanium custom-fitting surgical guide was proposed via titanium powder melted with layer by layer using a high-speed scanning galvanometer. Results The maximum equivalent stress of the mandible and surgical guide was distributed uniformly and reasonably, the titanium custom-fitting surgical guides formed by SLM molding equipment provided high accuracy and high density. Conclusion The combination of CT, CAD, FEA, SLM technology can fulfill mold-free manufacturing of surgical guides and the manufacturing cycle is shorten as well.

Key words: Titanium, Custom-fitting, Selective laser melting, Mandible, Finite element analysis

CLC Number: 

  • R782

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名字 弹性模量(GPa) 泊松比 文献
纯钛 110 0.35 [12]
松质骨 3 0.3 [13]
皮质骨 14 0.3 [13]

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类型 数值
激光功率 Max. 200 W
金属颗粒大小 20~90 μm
金属粉层厚度 20~100 μm
扫描速度 Max. 10 m/s
重复定位精度 ± 0.01 mm
激光光束直径 70~130 μm
成型速度 15 cm3/h
氮气保护 0.7 MPa,20 m3//h

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类型 数值
屈服强度(MPa) 584
断裂强度(MPa) 682
弹性模(GPa) 114.3
泊松比 0.31
断后延伸率(%) 16.9
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