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

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.

3D-printed conformal sensors for health monitoring of bovine post diaphragmatic hernia surgery: a review

“…Building digital twins of the human immune system: toward a roadmap Propose the establishment of a consortium for predictive immunology Laubenbacher et al (2022) 13. Digital-twin-enabled IoT system for surgical simulation The customized surgical operation platform built with deep learning had higher accuracy Singh et al (2023aSingh et al ( , 2023bSingh et al ( , 2023c 17.…”

“…The study dealt with the materials PVDF-HAP-CS and 17-4 PH SS that are biocompatible, piezoelectric (PVDF) and durable. According to previous studies, the implant made up of these materials would last approximately 15 years (Singh et al, 2023a(Singh et al, , 2023b(Singh et al, , 2023c, whereas the life of the targeted patient is only 10-12 years, therefore these materials bring sensing capabilities along with good mechanical properties. For the durability of the implantable sensors, essential factors are pore size, flexibility and mechanical properties of the hernia mesh as well as the incorporation with host tissue, and the selected materials are suitable for such applications (Singh et al, 2023a(Singh et al, , 2023b(Singh et al, , 2023c.…”

“…According to previous studies, the implant made up of these materials would last approximately 15 years (Singh et al, 2023a(Singh et al, , 2023b(Singh et al, , 2023c, whereas the life of the targeted patient is only 10-12 years, therefore these materials bring sensing capabilities along with good mechanical properties. For the durability of the implantable sensors, essential factors are pore size, flexibility and mechanical properties of the hernia mesh as well as the incorporation with host tissue, and the selected materials are suitable for such applications (Singh et al, 2023a(Singh et al, , 2023b(Singh et al, , 2023c. The low durability of PP solely depends upon its semicrystalline nature, which is responsible for the warpage and shrinkage behavior of PP that indirectly affects the mechanical strength of the component (Zander et al, 2019), whereas poor flowability and high viscosity make PTFE a difficult to extrude material.…”

“…Ti-based alloys are the most used materials for biomedical applications because of their corrosion resistance, good mechanical properties, etc. (Hosseini et al, 2016;Singh et al, 2023aSingh et al, , 2023bSingh et al, , 2023c provide an innovative design of multi-rooted dental implants for the strategic tooth of canines through the DMLS process using SS alloy. Apart from implant and prosthetic fabrication, AM also found an effective application in the field of biosensors that can transmit a physiological signal from the patient's body to a smart device for health monitoring purposes (Moscato et al, 2016).…”

On 3D printed intelligent diaphragmatic hernia sensor

“…DMLS makes it possible to fabricate implants with functionally graded materials, which is always preferable because they match the elastic properties of bones and reduce the stress shielding effect, which prevents the implant from losing stability over time by removing normal bone stress from the bone (Traini et al , 2008). Singh et al (2023) outlined that the DMLS process may be used to fabricate multiple-rooted dental implants for a strategically important canine tooth. In another study, Fina et al (2017) used pharmaceutical-grade excipients in the SLS printer to create oral medications without causing the drug to degrade.…”