The Use of Polyetheretherketone (PEEK) as an Alternative Post and Core Material: Five-Year Follow-Up Report

Abstract

This clinical report demonstrated the use of polyetheretherketone (PEEK) for manufacturing of custom-made post and core in weakened endodontically treated central incisors. The PEEK structure was manufactured using computer-aided design/computer-aided manufacturing (CAD/CAM). The optimal fit of this custom-made endodontic post allowed a thinner cement layer; and removed the need to manufacture a core build-up. While supplementary clinical trials and in vitro studies are needed to totally elucidate the advantages and limitations of PEEK as an option for post and core manufacturing, this case report showed that it can be promising for a predictable and simplified treatment with five years of success.

Effect of Ferrule Design on Stress Distribution of Maxillary Incisor Rehabilitated with Ceramic Crown and PEEK Post–Core Material: A 3D Finite Element Analysis

“…A couple of clinical cases [41,42] restoring maxillary incisors with custom-made PEEK post-core supporting single-unit lithium disilicate ceramic crowns, are present in the literature. In both of them, a ferrule of at least 2 mm was present.…”

“…In both of them, a ferrule of at least 2 mm was present. In the 5-year follow-up report [41], debonding was not observed and PEEK was considered to be an appropriate material to successfully restore central incisors. Another report, with a 3-year follow-up, concluded that PEEK can be a viable alternative for post materials.…”

Peek applications in restorative dentistry: A comprehensive review os uses, advantages and future prospects

“…All of the test specimens in this investigation showed load-bearing values greater than 1000 N, which suggests that they have sufficient fracture strength to withstand physiological occlusal stresses [33] . Significantly, three-unit PEEK FDP copings showed plastic deformation at 1200 N and fracture loading at 1378 N, according to Stawarczyk et al [3] . Notwithstanding the encouraging outcomes, it is critical to recognize constraints.…”

“…Compared to Co-Cr or titanium, PEEK is easier to mill and polish, making it a more favourable material to utilize in CAD-CAM milling. This results in prostheses that are lightweight and non-allergic [2,3] . Studies show that PEEK fixed dentures machined using CAD-CAM technology have better fracture resistance than dentures made of zirconia, alumina, or lithium disilicate glass-ceramic [1] .…”

“…This article examines Polyetheretherketone's (PEEK) uses, benefits, and prospects in restorative dentistry, with an eye toward how it might be able to overcome the drawbacks of traditional dental materials. Given the different roles that enamel and dentin play in mastication, dental therapies frequently aim to restore the combined activities of these materials [3] . High abrasion resistance is essential for enamel's fundamental function in food grinding, highlighting hardness as a crucial material attribute [4] .…”