scholarly journals Additive Manufacturing Technologies Used for 3D Metal Printing in Dentistry

2017 ◽  
Vol 4 (3) ◽  
pp. 201-208 ◽  
Author(s):  
Marta Revilla-León ◽  
Mutlu Özcan
Author(s):  
Thaís Barbin ◽  
Daniele Valente Velôso ◽  
Letícia Del Rio Silva ◽  
Guilherme Almeida Borges ◽  
Anna Gabriella Camacho Presotto ◽  
...  

2019 ◽  
Author(s):  
Jordan James ◽  
Michelle L Oblak ◽  
Alex zur Linden ◽  
Fiona MK James ◽  
Matt Parkes ◽  
...  

Additive manufacturing has allowed for the creation of a patient-specific custom solution that can resolve many of the limitations previously reported for canine cranioplasty. The purpose of this pilot study was to determine the schedule feasibility and workflow in manufacturing patient-specific titanium implants for canines undergoing cranioplasty immediately following craniectomy. Computed tomography scans from patients with tumors of the skull were considered and 3 cases were selected. Images were imported into OsiriX MD image processing software and tumor margins were determined based on agreement between a board-certified veterinary radiologist and veterinary surgical oncologist. Virtual surgical planning was performed and a 5mm bone margin was selected. A defect was created to simulate the intraoperative defect. Stereolithography format files of the skulls were imported into Renishaw Additive-manufacture for Design-led Efficient Patient Treatment (ADEPT) software. In collaboration with medical solution center, Additive Design in Surgical Solutions (ADEISS), a custom titanium plate was designed with the input of an applications engineer and veterinary surgical oncologist. Plates were printed in titanium and postprocessed at ADEISS. Total planning time was approximately 2 hours with a manufacturing time of 2 weeks. Based on the findings of this study, with access to an advanced 3D metal printing medical solution center that can provide advanced software and printing, patient-specific additive manufactured titanium implants can be planned, created, processed, shipped and sterilized for patient use within a 3-week turnaround.


2017 ◽  
Vol 2017 (12) ◽  
pp. 16-22 ◽  
Author(s):  
D.V. Kovalchuk ◽  
◽  
V.I. Melnik ◽  
I.V. Melnik ◽  
B.A. Tugaj ◽  
...  

2017 ◽  
Vol 2017 (12) ◽  
pp. 26-33
Author(s):  
D.V. Kovalchuk ◽  
◽  
V.I. Melnik ◽  
I.V. Melnik ◽  
B.A. Tugaj ◽  
...  

2019 ◽  
Author(s):  
Jordan James ◽  
Michelle L Oblak ◽  
Alex zur Linden ◽  
Fiona MK James ◽  
Matt Parkes ◽  
...  

Additive manufacturing has allowed for the creation of a patient-specific custom solution that can resolve many of the limitations previously reported for canine cranioplasty. The purpose of this pilot study was to determine the schedule feasibility and workflow in manufacturing patient-specific titanium implants for canines undergoing cranioplasty immediately following craniectomy. Computed tomography scans from patients with tumors of the skull were considered and 3 cases were selected. Images were imported into OsiriX MD image processing software and tumor margins were determined based on agreement between a board-certified veterinary radiologist and veterinary surgical oncologist. Virtual surgical planning was performed and a 5mm bone margin was selected. A defect was created to simulate the intraoperative defect. Stereolithography format files of the skulls were imported into Renishaw Additive-manufacture for Design-led Efficient Patient Treatment (ADEPT) software. In collaboration with medical solution center, Additive Design in Surgical Solutions (ADEISS), a custom titanium plate was designed with the input of an applications engineer and veterinary surgical oncologist. Plates were printed in titanium and postprocessed at ADEISS. Total planning time was approximately 2 hours with a manufacturing time of 2 weeks. Based on the findings of this study, with access to an advanced 3D metal printing medical solution center that can provide advanced software and printing, patient-specific additive manufactured titanium implants can be planned, created, processed, shipped and sterilized for patient use within a 3-week turnaround.


Author(s):  
Lucy Guo ◽  
Zhiqiang Xie ◽  
Hong Yao ◽  
Ying Wang

In the field of Additive Manufacturing (AM), one of the major applications of laser-based 3D metal printing is the creation of custom implants for medical purposes. However, a significant challenge in the manufacturing of implants using Selective Laser Melting (SLM) is the formation of partially melted particles on the surface of medical implants. These particles result in a multitude of issues including plurality of structurally weak points on the designed implants, obstruction of important design features, and possibility of dislodgement over the service life span, thereby posing a threat to the recipient. To address the above challenges, it is imperative to develop a simple but effective surface cleaning method to remove partially melted particles from the surface without damage to the designed medical implants. In this work, a comparative study was conducted to investigate the effect of both chemical and electro-plasma based cleaning processes on the removal of partially melted particles from the surfaces of 3D printed Ti-6Al-4V medical screw implants. These techniques include chemically polishing implants with HF-HNO3 acid solutions and using an electro-plasma based cleaning process. With the field of additive manufacturing rapidly expanding, this work offers valuable insight on proper post-process treatment of 3D printed parts for future medical purposes in biomedical fields.


2016 ◽  
Vol 712 ◽  
pp. 246-250
Author(s):  
Rinat G. Ahmetshin ◽  
Vasilii V. Fedorov ◽  
Kirill S. Kostikov ◽  
Nikita V. Martyushev ◽  
V.A. Ovchinnikov ◽  
...  

The paper provides data on the structures and specifications of laser printers for 3D metal printing. The printers were engineered in Research and Educational Center "Modern manufacturing technologies" in Tomsk Polytechnic University, Tomsk, Russia. The essential difference of the given printers is their laser power. The experimental research has shown that the setups with a more powerful laser (500W) enable synthesizing the objects of higher quality in a shorter period of time. The paper also presents data on forming samples structure with the use of 3D printing.


2019 ◽  
Vol 26 (3) ◽  
pp. 445-458 ◽  
Author(s):  
Adam Hehr ◽  
Mark Norfolk

Purpose This paper aims to comprehensively review ultrasonic additive manufacturing (UAM) process history, technology advancements, application areas and research areas. UAM, a hybrid 3D metal printing technology, uses ultrasonic energy to produce metallurgical bonds between layers of metal foils near room temperature. No melting occurs in the process – it is a solid-state 3D metal printing technology. Design/methodology/approach The paper is formatted chronologically to help readers better distinguish advancements and changes in the UAM process through the years. Contributions and advancements are summarized by academic or research institution following this chronological format. Findings This paper summarizes key physics of the process, characterization methods, mechanical properties, past and active research areas, process limitations and application areas. Originality/value This paper reviews the UAM process for the first time.


2021 ◽  
Vol 1 ◽  
pp. 231-240
Author(s):  
Laura Wirths ◽  
Matthias Bleckmann ◽  
Kristin Paetzold

AbstractAdditive Manufacturing technologies are based on a layer-by-layer build-up. This offers the possibility to design complex geometries or to integrate functionalities in the part. Nevertheless, limitations given by the manufacturing process apply to the geometric design freedom. These limitations are often unknown due to a lack of knowledge of the cause-effect relationships of the process. Currently, this leads to many iterations until the final part fulfils its functionality. Particularly for small batch sizes, producing the part at the first attempt is very important. In this study, a structured approach to reduce the design iterations is presented. Therefore, the cause-effect relationships are systematically established and analysed in detail. Based on this knowledge, design guidelines can be derived. These guidelines consider process limitations and help to reduce the iterations for the final part production. In order to illustrate the approach, the spare parts production via laser powder bed fusion is used as an example.


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