Mechanical Evaluation of Polyetheretherketone Compared With Zirconia as a Dental Implant Material

Abstract

INTRODUCTION:Dental implants are currently one of the main pillars of restorative dentistry. Titanium and its alloys were and still are the gold standard for dental implant materials. However, Titanium is not a perfect material and has many drawbacks thus the search for a more ideal material is ongoing. Zirconia and Polyetheretherketone are two viable alternatives to titanium as dental implant materials. They show different mechanical behavior invitro and invivo, so they are investigated and compared to each other. OBJECTIVES: Evaluate and compare the different material properties of Polyetheretherketone and yttrium-stabilized tetragonal polycrystalline zirconia when used as dental implant material. MATERIALS AND METHODS: Microbars of zirconia and Polyetheretherketone were prepared using precision cutter and low speed micro motor under water cooling and used to assess the following properties for the two materials: 1) Vickers Microhardness 2) Flexural strength before and after cyclic loading RESULTS: There was a highly significant difference between hardness of zirconia and Polyetheretherketone. There was also a highly significant difference between flexural strength of zirconia and Polyetheretherketone (both before and after cyclic loading). There was significant decrease in flexural strength of zirconia after cyclic loading. No significant difference was found for Polyetheretherketone after cyclic loading. CONCLUSIONS: Polyetheretherketone is a promising alternative to titanium and zirconium as a dental implant material.

Influence of Polymeric Restorative Materials on the Stress Distribution in Posterior Fixed Partial Dentures: 3D Finite Element Analysis

“…Fixed partial denture (FDP) in PEEK, manufactured using the CAD/CAM technology, is more resistant when compared to pressed PEEK prostheses [ 25 ] and when compared to brittle materials [ 26 ]. In addition, the CAD/CAM PEEK has a high value of Vickers hardness (31.55 ± 2.67) [ 27 ], flexural strength of 26.7 ± 4.3 MPa [ 27 ] and fracture toughness between 1.4 and 0.8 MN.m 1/2 [ 28 ].…”

Influence of Mechanical Properties of Dental Implants on Biomechanical Behavior: A Three-Dimensional Finite Element Analysis

“…A Ouldyerou and al [17] were studied the biomechanical performance of Ti-PEEK dental implants in bone: An in-silico analyse. Kassem and al [18], Have studied a mechanical evaluation of the comparison of polyetheretherketone (PEEK) with zirconia as a material for dental implants. S Gouasmi and al [19] Have using the finite element method for a comparison of the biomechanical behavior of dental implants.…”

Two Gingival Cell Lines Response to Different Dental Implant Abutment Materials: An In Vitro Study

“…Numerous medical devices including dental implants, abutments, healing caps, orthodontic braces, and most notably, and denture prosthetic frameworks have been developed via academic research and commercialization of biocompatible polymers and polymer-based composite materials [ 16 ]. Consequently, polyether ether ketone (PEEK) and similar composites have been improved to have a wide variety of physical, mechanical, and surface characteristics that may be tailored to meet the needs of various oral implant applications [ 17 ].…”