“Influence of Contamination and Cleaning Methods of Polyetheretherketone (PEEK) on Tensile Bond Strength”

Abstract

The novel high performance composite polyetheretherketone (PEEK), is a polymer from the main group of PAEK (polyaryletherketone). Since PEEK has many advantages in its physical, biological and mechanical properties, this composite material is used in general medicine and also in dentistry, which can be used as implant, provisional abutment and implant supported bar or clamp material.[100] It can also be a suitable material for fixed dental prostheses (FDPs), due to its high resiliency.[3] It also has a high strength to weight ratio which make it more favourable for the patients, mechanically it is similar to bone and dentin properties, in addition to its zero-corrosion rate and extremely low water absorption. Successful long-term bond strength to any indirect prosthetic material is influenced by a variety of factors during the bonding procedures. Contamination inhibits the formation of a stable bond [61, 65] by reducing the adaptation of the restorative material to the bonded surface.[4] Therefore, clean bonding substrates and materials are essential to achieve stable long-term bond strength. Since bonding to ceramics, zirconia and resins can be compromised by contamination during try in procedure or during fabrication in the dental laboratory. Saliva, blood, silicone indicator, and die stone have been identified to reduce