Patient-specific 3D printed Poly-ether-ether-ketone (PEEK) dental implant system

Surendrasingh Y Sonaye; Vijay K Bokam; Akshay Saini; Vasudev V Nayak; Lukasz Witek; Paulo G Coelho; Sarit B Bhaduri; Marco C Bottino; Prabaha Sikder

doi:10.1016/j.jmbbm.2022.105510

Patient-specific 3D printed Poly-ether-ether-ketone (PEEK) dental implant system

J Mech Behav Biomed Mater. 2022 Dec:136:105510. doi: 10.1016/j.jmbbm.2022.105510. Epub 2022 Oct 9.

Authors

Surendrasingh Y Sonaye¹, Vijay K Bokam¹, Akshay Saini¹, Vasudev V Nayak², Lukasz Witek³, Paulo G Coelho⁴, Sarit B Bhaduri⁵, Marco C Bottino⁶, Prabaha Sikder⁷

Affiliations

¹ Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, USA.
² Department of Mechanical and Aerospace Engineering, New York University Tandon School of Engineering, Brooklyn, NY, USA; Biomaterials Division - Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA.
³ Biomaterials Division - Department of Molecular Pathobiology, New York University College of Dentistry, New York, NY, USA; Department of Biomedical Engineering, New York University Tandon School of Engineering, Brooklyn, NY, USA.
⁴ Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, USA; Department of Biochemistry and Molecular Biology, University of Miami Miller School of Medicine, Miami, FL, USA.
⁵ Department of Mechanical, Industrial and Manufacturing Engineering, University of Toledo, Toledo, OH, USA.
⁶ Department of Cariology, Restorative Sciences, Endodontics, School of Dentistry, University of Michigan, Ann Arbor, MI, USA; Department of Biomedical Engineering, University of Michigan, Ann Arbor, MI, 48109, USA.
⁷ Department of Mechanical Engineering, Cleveland State University, Cleveland, OH, USA. Electronic address: p.sikder@csuohio.edu.

PMID: 36244326
DOI: 10.1016/j.jmbbm.2022.105510

Abstract

Fused Filament Fabrication (FFF)-based 3D printing is an efficient technique for developing medical implants, but it is not very useful in developing small yet mechanically robust design-specific fixtures such as dental implants (<15 mm). Specifically, it is challenging to 3D print robust Polyetheretherketone (PEEK) small implants due to PEEK's high melting temperature and melt viscosity. However, in this study, we efficiently utilize high-temperature FFF to develop the first-of-its-kind patient-specific robust PEEK dental implants with high print resolution. Specifically, we explore the effects of critical FFF processing conditions on the mechanical properties of the implants and subsequently determine an optimized set of processing conditions that are essential in developing durable dental implant systems. Our results indicate that the 3D printed dental implants exhibit good fatigue properties and suffice the clinical and industrial requirements for dental implants. Furthermore, we prove that the 3D printed implants exhibit adequate mechanical durability even after simulated (accelerated) aging of 30 years.

Keywords: 3D printing; Dental implants; Mechanical properties; PEEK; Patient-specific implants (PSIs).

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Dental Implants*
Ether
Ethers
Ethyl Ethers
Humans
Ketones*
Printing, Three-Dimensional

Substances

Ketones
polyetheretherketone
Dental Implants
Ether
Ethyl Ethers
Ethers