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On 3D printing of customized multi-root dental implants for the strategic tooth of canine by direct metal laser sintering

On 3D printing of customized multi-root dental implants for the strategic tooth of canine by... This study aims to design and fabricate a customized multi-rooted dental implant (MRDI) for a canine strategic tooth to reduce surgical time/effort, and better assembly features, leading to enhanced primary and secondary stability and load-bearing capabilities by direct-metal laser sintering (DMLS).Design/methodology/approachA fractured tooth of a male German Shepherd three-year-old dog (extracted from a cadaver) was selected as the subject for the proposed work. The computer-aided design model of the implant was developed on SOLIDWORKS after a detailed review of literature and consultation with a veterinary doctor about the surgical procedures. Static stress analysis on the implant assembly and residual stress analysis with boundary distortion were performed on each part of the implant subassembly to ensure the fool-proof design.FindingsThe functional prototype of the innovative MRDI assembly through DMLS was successfully prepared with acceptable dimensional stability, surface roughness (Ra) and refined microstructure. The 3D printed functional prototype was observed to be residual stress-proof during printing and can bear up to 800 N bite force (required for an adult dog).Originality/valueInnovative MRDI assembly has been 3D printed by using 17–4 precipitate hardened stainless steel without compromising the strength and can be implanted without bone grafting for better primary stability. Also, the prepared implant will be better for secondary stability due to enhanced osseointegration. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Rapid Prototyping Journal Emerald Publishing

On 3D printing of customized multi-root dental implants for the strategic tooth of canine by direct metal laser sintering

Singh, Rupinder; Das, Anish; Anand, Arun
Rapid Prototyping Journal , Volume 29 (3): 13 – Mar 2, 2023
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References (28)

Publisher
Emerald Publishing
Copyright
© Emerald Publishing Limited
ISSN
1355-2546
eISSN
1355-2546
DOI
10.1108/rpj-04-2022-0112
Publisher site
See Article on Publisher Site

Abstract

This study aims to design and fabricate a customized multi-rooted dental implant (MRDI) for a canine strategic tooth to reduce surgical time/effort, and better assembly features, leading to enhanced primary and secondary stability and load-bearing capabilities by direct-metal laser sintering (DMLS).Design/methodology/approachA fractured tooth of a male German Shepherd three-year-old dog (extracted from a cadaver) was selected as the subject for the proposed work. The computer-aided design model of the implant was developed on SOLIDWORKS after a detailed review of literature and consultation with a veterinary doctor about the surgical procedures. Static stress analysis on the implant assembly and residual stress analysis with boundary distortion were performed on each part of the implant subassembly to ensure the fool-proof design.FindingsThe functional prototype of the innovative MRDI assembly through DMLS was successfully prepared with acceptable dimensional stability, surface roughness (Ra) and refined microstructure. The 3D printed functional prototype was observed to be residual stress-proof during printing and can bear up to 800 N bite force (required for an adult dog).Originality/valueInnovative MRDI assembly has been 3D printed by using 17–4 precipitate hardened stainless steel without compromising the strength and can be implanted without bone grafting for better primary stability. Also, the prepared implant will be better for secondary stability due to enhanced osseointegration.

Journal

Rapid Prototyping Journal – Emerald Publishing

Published: Mar 2, 2023

Keywords: Additive manufacturing; Multi-rooted dental implant assembly; Strategic teeth; Veterinary patients; DMLS; 17–4 PH stainless steel

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