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

Rupinder Singh (Department of Mechanical Engineering, National Institute of Technical Teachers Training and Research, Chandigarh, India)
Anish Das (Department of Mechanical Engineering, National Institute of Technical Teachers Training and Research, Chandigarh, India)
Arun Anand (Department of Veterinary Surgery and Radiology, College of Veterinary Science, Guru Angad Dev Veterinary and Animal Sciences University, Ludhiana, India)

Rapid Prototyping Journal

ISSN: 1355-2546

Article publication date: 30 August 2022

Issue publication date: 2 March 2023

235

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

Copyright © 2022, Emerald Publishing Limited

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