On 3D printing of customized multi-root dental implants for the strategic tooth of canine by direct metal laser sintering
ISSN: 1355-2546
Article publication date: 30 August 2022
Issue publication date: 2 March 2023
Abstract
Purpose
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/approach
A 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.
Findings
The 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/value
Innovative 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.
Keywords
Acknowledgements
The author(s) are thankful to DST (GoI) for providing research facilities under the FIST project (File No. SR/FST/COLLEGE/2020/997).
Funding: Department of Science and Technology, Ministry of Science and Technology (SR/FST/COLLEGE/2020/997).
Citation
Singh, R., Das, A. and Anand, A. (2023), "On 3D printing of customized multi-root dental implants for the strategic tooth of canine by direct metal laser sintering", Rapid Prototyping Journal, Vol. 29 No. 3, pp. 447-459. https://doi.org/10.1108/RPJ-04-2022-0112
Publisher
:Emerald Publishing Limited
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