Next Article in Journal
Environmentally Assisted Cracking Behavior of S420 and X80 Steels Containing U-notches at Two Different Cathodic Polarization Levels: An Approach from the Theory of Critical Distances
Previous Article in Journal
An Extended Iterative Identification Method for the GISSMO Model
Previous Article in Special Issue
Corrosion Study of Implanted TiN Electrodes Using Excessive Electrical Stimulation in Minipigs
Article Menu

Export Article

Open AccessArticle

Digital Design, Analysis and 3D Printing of Prosthesis Scaffolds for Mandibular Reconstruction

Advanced Manufacturing Institute, King Saud University, Riyadh 11421, Saudi Arabia
*
Author to whom correspondence should be addressed.
Metals 2019, 9(5), 569; https://doi.org/10.3390/met9050569
Received: 21 March 2019 / Revised: 12 May 2019 / Accepted: 14 May 2019 / Published: 16 May 2019
(This article belongs to the Special Issue Titanium Alloys for Biomedical Implants and Devices)
  |  
PDF [7948 KB, uploaded 16 May 2019]
  |  

Abstract

Segmental mandibular reconstruction has been a challenge for medical practitioners, despite significant advances in medical technology. There is a recent trend in relation to customized implants, made up of porous structures. These lightweight prosthesis scaffolds present a new direction in the evolution of mandibular restoration. Indeed, the design and properties of porous implants for mandibular reconstruction should be able to recover the anatomy and contour of the missing region as well as restore the functions, including mastication, swallowing, etc. In this work, two different designs for customized prosthesis scaffold have been assessed for mandibular continuity. These designs have been evaluated for functional and aesthetic aspects along with effective osseointegration. The two designs classified as top and bottom porous plate and inner porous plate were designed and realized through the integration of imaging technology (computer tomography), processing software and additive manufacturing (Electron Beam Melting). In addition, the proposed designs for prosthesis scaffolds were analyzed for their biomechanical properties, structural integrity, fitting accuracy and heaviness. The simulation of biomechanical activity revealed that the scaffold with top and bottom porous plate design inherited lower Von Mises stress (214.77 MPa) as compared to scaffold design with inner porous plate design (360.22 MPa). Moreover, the top and bottom porous plate design resulted in a better fit with an average deviation of 0.8274 mm and its structure was more efficiently interconnected through the network of channels without any cracks or powder material. Verily, this study has demonstrated the feasibility and effectiveness of the customized porous titanium implants in mandibular reconstruction. Notice that the design and formation of the porous implant play a crucial role in restoring the desired mandibular performance. View Full-Text
Keywords: mandibular reconstruction; scaffolds; reconstruction plate; finite element analysis; 3D printing; titanium alloy mandibular reconstruction; scaffolds; reconstruction plate; finite element analysis; 3D printing; titanium alloy
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Moiduddin, K.; Mian, S.H.; Alkhalefah, H.; Umer, U. Digital Design, Analysis and 3D Printing of Prosthesis Scaffolds for Mandibular Reconstruction. Metals 2019, 9, 569.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top