Custom Designed Orthodontic Attachment Manufactured Using a Biocompatible 3D Printing Material

Treatment of impacted teeth often implies placing a bonded attachment and using orthodontic forces to move the tooth into occlusion. The aim of the paper is to describe a novel methodology of manufacturing orthodontic attachments for impacted teeth using the latest CAD software and 3D printing technology. A biocompatible acrylic based resin was used to print a custom made attachment designed based on the volumetric data aquired through cone bean computer tomography. Custom design of the attachment simplified clinical insertion and treatment planning and 3D printing made its manufacturing easier. Being a first trial, more reasearch is needed to improve the methodology and materials used.

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Application of 3D printing and distributed manufacturing during the first-wave of COVID-19 pandemic. Our experience at a third-level university hospital.

10.21203/rs.3.rs-34063/v3 ◽

2020 ◽

Author(s):

Ruben Perez-Mañanes ◽

Sonia García de San José ◽

Manuel Desco-Menéndez ◽

Ignacio Sánchez-Arcilla ◽

Esmeralda González-Fernández ◽

...

Keyword(s):

3D Printing ◽

Hospital Environment ◽

Production Model ◽

Maximum Efficiency ◽

Special Importance ◽

Distributed Manufacturing ◽

Printing Technology ◽

3D Printing Technology ◽

Custom Made

Abstract Background 3D printing and distributed manufacturing represent a paradigm shift in the health system that is becoming critical during the COVID-19 pandemic. University hospitals are also taking on the role of manufacturers of custom-made solutions thanks to 3D printing technology. Case Presentation We present a monocentric observational case study regarding the distributed manufacturing of three groups of products during the period of the COVID-19 pandemic from 14 March to 10 May 2020: personal protective equipment, ventilatory support, and diagnostic and consumable products. Networking during this period has enabled the delivery of a total of 17,276 units of products manufactured using 3D printing technology. The most manufactured product was the face shields and ear savers, while the one that achieved the greatest clinical impact was the mechanical ventilation adapters and swabs. The products were manufactured by individuals in 57.3% of the cases, and our hospital acted as the main delivery node in a hub with 10 other hospitals. The main advantage of this production model is the fast response to stock needs, being able to adapt almost in real time.Conclusions The role of 3D printing in the hospital environment allows the reconciliation of in-house and distributed manufacturing with traditional production, providing custom-made adaptation of the specifications, as well as maximum efficiency in the working and availability of resources, which is of special importance at critical times for health systems such as the current COVID-19 pandemic.

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Three-Dimensional Printing: Custom-Made Implants for Craniomaxillofacial Reconstructive Surgery

Craniomaxillofacial Trauma & Reconstruction ◽

10.1055/s-0036-1594277 ◽

2017 ◽

Vol 10 (2) ◽

pp. 089-098 ◽

Cited By ~ 3

Author(s):

Mariana Matias ◽

Horácio Zenha ◽

Horácio Costa

Keyword(s):

3D Printing ◽

Reconstructive Surgery ◽

Three Dimensional ◽

Tactile Feedback ◽

Current Status ◽

Printing Technology ◽

Three Dimensional Printing ◽

3D Printing Technology ◽

Custom Made ◽

The Aesthetic

Craniomaxillofacial reconstructive surgery is a challenging field. First it aims to restore primary functions and second to preserve craniofacial anatomical features like symmetry and harmony. Three-dimensional (3D) printed biomodels have been widely adopted in medical fields by providing tactile feedback and a superior appreciation of visuospatial relationship between anatomical structures. Craniomaxillofacial reconstructive surgery was one of the first areas to implement 3D printing technology in their practice. Biomodeling has been used in craniofacial reconstruction of traumatic injuries, congenital disorders, tumor removal, iatrogenic injuries (e.g., decompressive craniectomies), orthognathic surgery, and implantology. 3D printing has proven to improve and enable an optimization of preoperative planning, develop intraoperative guidance tools, reduce operative time, and significantly improve the biofunctional and the aesthetic outcome. This technology has also shown great potential in enriching the teaching of medical students and surgical residents. The aim of this review is to present the current status of 3D printing technology and its practical and innovative applications, specifically in craniomaxillofacial reconstructive surgery, illustrated with two clinical cases where the 3D printing technology was successfully used.

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Designer Cranioplasty at Budget Prices: A Novel Use of 3D Printing Technology

Indian Journal of Neurosurgery ◽

10.1055/s-0040-1716995 ◽

2021 ◽

Author(s):

Thirumal Yerragunta ◽

Reddy Ramanadha Kanala ◽

Vamsi Krishna Yerramneni ◽

Swapnil Kolpakawar ◽

Vasundhara Rangan

Keyword(s):

Patient Satisfaction ◽

3D Printing ◽

Bone Cement ◽

Polymethyl Methacrylate ◽

Printing Technology ◽

3D Printing Technology ◽

Pmma Bone Cement ◽

Custom Made ◽

3D Printed ◽

Exact Shape

Abstract Background Cranioplasty using synthetic materials for restoration of the exact shape of the skull has always remained a challenge until the development of 3D printing technology. However, the high-cost of available 3D printed implants limits their extensive use. Objectives To study the effectiveness of a low-cost, 3D-printed template for molding the polymethyl methacrylate (PMMA) (bone cement) in order to achieve exact contours of the skull specific to each patient. Materials and Methods 10 cranioplasties have been performed between July 2018 to December 2019 in a variety of craniotomy defects using bone cement flaps shaped using custom-made molds. The mold was 3D-printed and based on each patient’s CT images in digital imaging and communications in medicine (DICOM). Miniplates and screws were used to fix the flap. Postoperatively, clinical and radiological evaluation were done to assess patient satisfaction and accuracy of contour achieved. Results Patient satisfaction as well as accuracy of contouring, as seen on postoperative CT scans, were excellent. There were no notable complications on follow-up. Conclusion PMMA cranioplasty flap, contoured using a 3D-printed mold, is a very cost-effective alternative for restoration of skull contour for various craniotomy defects.Polymethyl methacrylate (PMMA) molded to form the exact shape of lost calvarium using 3D printed plastic templates is a smart and economical solution

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Testing of mechanical properties of materials used in FDM technology

Mechanik ◽

10.17814/mechanik.2019.4.37 ◽

2019 ◽

Vol 92 (4) ◽

pp. 285-287 ◽

Cited By ~ 1

Author(s):

Marcin Snopczyński ◽

Jarosław Kotliński ◽

Ireneusz Musiałek

Keyword(s):

Mechanical Properties ◽

Tensile Strength ◽

3D Printing ◽

Strength Parameters ◽

Full Data ◽

Printing Technology ◽

3D Printing Technology ◽

Mechanical Properties Of Materials ◽

Properties Of Materials ◽

Materials Used

With the development of 3D printing technology, there is a development in the use of new printing materials. In practice, it often happens that the constructor does not have full data about the material that he wants to use. The article presents the results of tests of tensile strength of samples printed using the FDM method. 3D printing using the FDM method is widespread, however, the properties of the materials used in this method are still not fully understood. The aim of the research was to obtain information on strength parameters that form the basis for further analyzes.

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Point-of-care manufacturing: a single university hospital’s initial experience

3D Printing in Medicine ◽

10.1186/s41205-021-00101-z ◽

2021 ◽

Vol 7 (1) ◽

Author(s):

Jose Antonio Calvo-Haro ◽

Javier Pascau ◽

José Manuel Asencio-Pascual ◽

Felipe Calvo-Manuel ◽

Maria José Cancho-Gil ◽

...

Keyword(s):

3D Printing ◽

Point Of Care ◽

Maxillofacial Surgery ◽

University Hospital ◽

Manufacturing Companies ◽

Printing Technology ◽

Medical Specialties ◽

3D Printing Technology ◽

Surgical Guides ◽

Custom Made

Abstract Background The integration of 3D printing technology in hospitals is evolving toward production models such as point-of-care manufacturing. This study aims to present the results of the integration of 3D printing technology in a manufacturing university hospital. Methods Observational, descriptive, retrospective, and monocentric study of 907 instances of 3D printing from November 2015 to March 2020. Variables such as product type, utility, time, or manufacturing materials were analyzed. Results Orthopedic Surgery and Traumatology, Oral and Maxillofacial Surgery, and Gynecology and Obstetrics are the medical specialties that have manufactured the largest number of processes. Working and printing time, as well as the amount of printing material, is different for different types of products and input data. The most common printing material was polylactic acid, although biocompatible resin was introduced to produce surgical guides. In addition, the hospital has worked on the co-design of custom-made implants with manufacturing companies and has also participated in tissue bio-printing projects. Conclusions The integration of 3D printing in a university hospital allows identifying the conceptual evolution to “point-of-care manufacturing.”

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Mallet Finger Lattice Casts Using 3D Printing

Journal of Healthcare Engineering ◽

10.1155/2019/4765043 ◽

2019 ◽

Vol 2019 ◽

pp. 1-5

Author(s):

Hyeunwoo Choi ◽

Anna Seo ◽

Jongmin Lee

Keyword(s):

Clinical Practice ◽

3D Printing ◽

Mallet Finger ◽

Printing Technology ◽

3D Printing Technology ◽

Plaster Of Paris ◽

Advantages And Disadvantages ◽

Appropriate Treatment ◽

Custom Made ◽

3D Printed

Currently, research based on the technology and applications of 3D printing is being actively pursued. 3D printing technology, also called additive manufacturing, is widely and increasingly used in the medical field. This study produced custom casts for the treatment of mallet finger using plaster of Paris, which was traditionally used in clinical practice, and 3D printing technology, and evaluated their advantages and disadvantages for patients by conducting a wearability assessment. Mallet finger casts produced using plaster of Paris, when incorrectly made, can result in skin necrosis and other problems for patients. These problems can be mitigated, however, by creating casts using 3D printing technology. Additionally, plaster casts or ready-made alternatives can be inconvenient with respect to rapid treatment of patients. In contrast, 3D-printed casts appear to provide patients with appropriate treatment and increase their satisfaction because they are small in size, custom-made for each patient, and can be quickly made and immediately applied in clinical practice.

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Hybrid Materials Based on Fly Ash, Metakaolin, and Cement for 3D Printing

Materials ◽

10.3390/ma14226874 ◽

2021 ◽

Vol 14 (22) ◽

pp. 6874

Author(s):

Joanna Marczyk ◽

Celina Ziejewska ◽

Szymon Gądek ◽

Kinga Korniejenko ◽

Michał Łach ◽

...

Keyword(s):

Fly Ash ◽

3D Printing ◽

Hybrid Materials ◽

Raw Materials ◽

Cement Matrix ◽

Printing Technology ◽

X Ray ◽

3D Printing Technology ◽

Solid Ratio ◽

Materials Used

Nowadays, one very dynamic development of 3D printing technology is required in the construction industry. However, the full implementation of this technology requires the optimization of the entire process, starting from the design of printing ideas, and ending with the development and implementation of new materials. The article presents, for the first time, the development of hybrid materials based on a geopolymer or ordinary Portland cement matrix that can be used for various 3D concrete-printing methods. Raw materials used in the research were defined by particle size distribution, specific surface area, morphology by scanning electron microscopy, X-ray diffraction, thermal analysis, radioactivity tests, X-ray fluorescence, Fourier transform infrared spectroscopy and leaching. The geopolymers, concrete, and hybrid samples were described according to compressive strength, flexural strength, and abrasion resistance. The study also evaluates the influence of the liquid-to-solid ratio on the properties of geopolymers, based on fly ash (FA) and metakaolin (MK). Printing tests of the analyzed mixtures were also carried out and their suitability for various applications related to 3D printing technology was assessed. Geopolymers and hybrids based on a geopolymer matrix with the addition of 5% cement resulted in the final materials behaving similarly to a non-Newtonian fluid. Without additional treatments, this type of material can be successfully used to fill the molds. The hybrid materials based on cement with a 5% addition of geopolymer, based on both FA and MK, enabled precise detail printing.

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Point-of-care 3D printing during the COVID-19 pandemic. What role does the manufacturing university hospital play?

10.21203/rs.3.rs-34063/v1 ◽

2020 ◽

Author(s):

Ruben Perez-Mañanes ◽

Sonia García de San José ◽

Manuel Desco-Menéndez ◽

Ignacio Sánchez-Arcilla ◽

Esmeralda González-Fernández ◽

...

Keyword(s):

3D Printing ◽

Point Of Care ◽

Ventilatory Support ◽

Production Model ◽

Maximum Efficiency ◽

Special Importance ◽

Printing Technology ◽

3D Printing Technology ◽

Custom Made

Abstract BackgroundPoint-of-care (POC) manufacturing and distributed production represent a paradigm shift in the health system that is becoming critical during the COVID-19 pandemic. University hospitals are also taking on the role of manufacturers of custom-made solutions thanks to 3D printing technology.Case DescriptionWe present a monocentric observational study regarding the distributed manufacture of three groups of products during the period of the COVID-19 pandemic from 14 March to 10 May 2020: personal protective equipment, ventilatory support, and diagnostic and consumable products.Discussion and EvaluationNetworking during this period has enabled the delivery of a total of 17.276 units of products manufactured using 3D printing technology. The most manufactured product was the face shields and ear savers, while the one that achieved the greatest clinical impact was the mechanical ventilation adapters and swabs. The products were manufactured by individuals in 57.3% of the cases, and our hospital acted as the main delivery node in a hub with 10 other hospitals. The main advantage of this production model is the fast response to stock needs, being able to adapt almost in real time.ConclusionsThe role of the manufacturing hospital allows the reconciliation of in-house and distributed manufacturing with traditional production, providing custom-made adaptation of the specifications, as well as maximum efficiency in the working and availability of resources, which is of special importance at critical times for health systems such as the current COVID-19 pandemic.

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Üç Boyutlu (3D) Yazıcı Teknolojisi ile Gıda Üretimine Genel Bakış

Turkish Journal of Agriculture - Food Science and Technology ◽

10.24925/turjaf.v5i6.593-599.1062 ◽

2017 ◽

Vol 5 (6) ◽

pp. 593

Author(s):

Celalettin Değerli ◽

Sedef Nehir El

Keyword(s):

3D Printing ◽

Food Production ◽

Raw Materials ◽

Three Dimensional ◽

Historical Period ◽

Food Sector ◽

Printing Technology ◽

3D Printing Technology ◽

Materials Used ◽

Food Printing

Three dimensional (3D) printing technology, have been quite popular in recent years. It came out first in the area of material production, but now, it has been applied on the other possible fields like food production. In this review, historical period of 3D printing, 3D printer types and working principles, studies on 3D food printing until today and the raw materials used in this studies were investigated. Studies on food printing was also categorised according to food types. Also, the impacts of 3D printing technology on food sector from the point of producer and consumer and future needs were discussed.

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