On pre and post-processing parameters of FDM for the development of crowns for strategic teeth of canines

Pradhan, Smruti Ranjan; Singh, Rupinder; Banwait, S. S.; Anand, Arun

doi:10.1007/s12046-022-01941-z

Cited by 4 publications

(1 citation statement)

References 28 publications

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“…3D technologies such as photography, modeling, and printing have evolved as accurate and practical tools for manufacturing an infinite number of technical and biological components. 1 Many researchers have investigated metallic and non-metallic materials in 3D printing procedures such as direct metal laser sintering (DMLS), 2 fused filament fabrication (FFF), 3 bio-printing, and stereolithography to produce prostheses, 4 scaffolds, and implants. 5 3D printed fluoropolymers are expensive because the filaments were recently commercialized to enable FFF of functional parts for high purity, and biocompatibility needs.…”

Section: Introductionmentioning

confidence: 99%

On PVDF composite as partially absorbable smart implants

Husain

Singh

Pabla

2023

Proc Inst Mech Eng H

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For various orthopedic needs, several studies have been testified on non-absorbable implants, prepared with different metals/alloys, and composites. But yet little has been stated on the partially absorbable smart implants of thermoplastic composites for online health monitoring of veterinary patients. This article highlights the in-house development of affordable, polyvinylidene fluoride (PVDF) composite-based partially absorbable smart implants (with online sensing capability) for orthopedic needs in canines. Hydroxyapatite (HAp) and chitosan (CS) nanoparticles were reinforced in the PVDF matrix by a melt processing route with various weight proportions (wt.%) to fabricate a partially absorbable smart implant for the canine. The study suggests that the 8.0 wt.% HAp and 2.0 wt.% CS in PVDF is the superlative composition/proportion of reinforcement for preparing feedstock stock filaments (for 3D printing of partially absorbable smart implants), based on rheological, mechanical, thermal, dielectric, and voltage-current-resistance ( V- I- R) characteristics. For the selected composition/proportion of PVDF composite, acceptable mechanical properties (such as modulus of toughness (MoT) 2.0 MPa, Young’s modulus (E) 889 MPa), and dielectric properties (dielectric constant (ε r) 9.6 at room temperature (30°C) and 20 MHz) for online sensing capabilities (for health monitoring) was observed. The results are braced by attenuated total reflection Fourier transform infrared (ATR-FTIR), X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS) analysis.

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