Implementation of Computer-Assisted Design, Analysis, and Additive Manufactured Customized Mandibular Implants

Moiduddin, Khaja

doi:10.1007/s40846-018-0370-5

Cited by 18 publications

(6 citation statements)

References 19 publications

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“…The application of AM has expanded into various fields, with medical, automotive, aerospace and bioengineering being the fastest growing sectors in the AM industry [4][5][6]. The main reason is that AM has advantages that cannot be underestimated compared to traditional manufacturing techniques, such as the manufacture of complex structures, the reduction of material waste, and the customization of products [7][8][9][10][11]. Fused deposition modeling (FDM) is the preferred technique that widely used in 3D printing plastic parts in the modern manufacturing world [12].…”

Section: Introductionmentioning

confidence: 99%

Characterization of mechanical properties and fracture mode of PLA and copper/PLA composite part manufactured by fused deposition modeling

et al. 2019

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In this paper, fused deposition modeling is used to process pure polylactic acid (PLA) and copper fiber reinforced PLA composite (Cu/PLA) specimen. Comparative experiments are performed on printed specimens of different raster angles (0°, 90°, 45°, 0°/90° and ± 45°, respectively). Tensile testing, dynamic mechanical analysis (DMA), and fracture surface analysis are employed to characterize all the specimens. The DMA exhibits remarkable improvement on storage modulus and loss tangent of Cu/PLA composite specimen. Due to the lower tensile strength and higher elasticity of Cu fiber compared with PLA, the tensile strength of Cu/PLA composite specimen decreases with the addition of Cu fiber, while the elongation-at-break increases. Both PLA and Cu/PLA specimens printed at a raster angle of 0° show highest tensile strength and dynamic mechanical properties, while the 90° raster angle with the lowest value. Fracture morphologies indicate that the failure of a specimen of 0° raster angle is intra-layer fracture, while inter-layer fracture occur in the specimen of 90° raster angle.

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Section: Introductionmentioning

confidence: 99%

Characterization of mechanical properties and fracture mode of PLA and copper/PLA composite part manufactured by fused deposition modeling

et al. 2019

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“…The AM in medical applications has been gradually arousing interest due to its customization, economical production and fast delivery (Moiduddin, 2018; Ramola et al. , 2019; Sobota et al.…”

Section: Introductionmentioning

confidence: 99%

“…Over the past decade, most orthopedic medical implants have traditionally been produced using casting, forging and machining techniques. These implants are manufactured in standardized sizes and shapes and, in some cases, require manual adjustment before surgery by trial and error to fit the patient's bone contour, as any nonconformity between the implant and the bone contours results in implant failure, physiological stress and pain for the patients (Lowther et al, 2019;Moiduddin, 2018) for the rest of their lives.…”

Section: Introductionmentioning

confidence: 99%

The “V” model for decision analysis of additive manufacturing implementation

Lima

Sátyro

Contador

et al. 2023

JMTM

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PurposeThis study aims to broaden the understanding of the additive manufacturing (AM) body of knowledge, presenting a model better suited to the current level of technological development that supports the decision to implement AM in industries, based on the experience of companies in the industry of orthopedic medical implants.Design/methodology/approachBased on the design-science research, the model for the decision to adopt the AM was designed and submitted to experts from the industry of orthopedic implants in Brazil for refinement. For the empirical test of the final model, interviews were used in a company that was considering implementing AM and in another that was not, to evaluate the model.FindingsThe model considers seven dimensions for decision analysis of AM implementation: legal constraints, financial, technological, operational, organizational, supply chain and external factors, being subdivided into 42 criteria that play a relevant role in the implementation decision. The analysis factor of each dimension and criteria are also presented.Originality/valueThe model seeks to be as complete as possible and can be used by various industrial productive sectors, incorporating the analysis of the requirements of health regulatory agencies, suitable for the analysis of the decision to implement AM for the manufacturing of medical implants, not found in other models.

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“…Various additive manufacturing processes have been reviewed, which can manufacture such type of complex structure out of which most feasible, suitable and productive process is the Powder Bed Fusion (PBF) [5]. For the reconstruction of a facial implant, a strategy has been set up as described which is based on the mirror design reconstruction technique [6]. This paper concentrates on the pre-examination of such a manufacturing process which allows the prediction of the results beforehand so that the post-traumatic fracture of zygomatic bone can be treated in a more efficient way by the manufacturing of an actual implant that is compliant and suitable and then can be fitted in the human body during surgery.…”

Section: Introductionmentioning

confidence: 99%

Topology and FEA modeling and optimization of a patient-specific zygoma implant

Cholkar¹,

Kinahan²,

Brabazon³

2021

Esaform 2021

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Additive manufacturing has proven to be a very beneficial production technology in the medical and healthcare industries. While existing for over four decades, recent work has seen great improvements in the quality of products; particularly in medical devices such as implants. Improved customization reduced operating time and increased cost-effectiveness associated with Metal AM for these products offers a new value proposition. This paper investigates and evaluates modelling methods for the zygoma bone (human jawbone) and explores the most suitable material and optimum design for this critical biomedical implant. This paper proposes an innovative and efficient pre-process methodology that includes modelling, design validation, topological optimization, and numerical analysis. The method includes the generation of the model using reverse engineering of CT scan data and a topology optimization technique which makes the implant lightweight without causing excessive stress concentration. Static structural Finite Element Analysis was conducted to test three different biocompatible materials (Ti6Al4V, stainless steel 316L and CoCr alloys) which are commonly available for metal additive manufacturing. The stresses and conditions in the analysis were that of the human mastication process and all the implant design were tested with the three material types. The Taguchi method was used to determine the optimum design which was found to result in the highest mass reduction of 25% with Ti6Al4V as the implant material.

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Implementation of Computer-Assisted Design, Analysis, and Additive Manufactured Customized Mandibular Implants

Cited by 18 publications

References 19 publications

Characterization of mechanical properties and fracture mode of PLA and copper/PLA composite part manufactured by fused deposition modeling

Characterization of mechanical properties and fracture mode of PLA and copper/PLA composite part manufactured by fused deposition modeling

The “V” model for decision analysis of additive manufacturing implementation

Topology and FEA modeling and optimization of a patient-specific zygoma implant

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