Comparison of the efficacy of removable polyether ether ketone prostheses with traditional removable prostheses
DOI:
https://doi.org/10.29166/odontologia.vol27.n3.esp.2025-e8389Keywords:
removable partial denture, polyetheretherketone (PEEK), polymers, cobalt chromium prosthesis, oral rehabilitationAbstract
Polyetheretherketone (PEEK) is a polymeric material composed of an aromatic core bonded by ketone and ether groups. The objective was to compare the efficacy of removable polyetheretherketone prostheses with that of traditional removable prostheses. A systematic review was conducted following the recommendations of the PRISMA guidelines, searching databases such as PubMed, LILACS, SCOPUS, EMBASE, and ScienceDirect. 20 articles published between 2020 and 2024 were included. The main characteristics of PEEK removable prostheses are their high biocompatibility, good mechanical properties, high-temperature resistance, chemical stability, polishability, good wear resistance, low plaque affinity, and high adhesion strength with composite resins. They have a low specific gravity, which contributes to making them lighter and more comfortable prostheses. They have a low modulus of elasticity similar to that of bone. They do not have a metallic color; however, they are available in shades of beige, pink, and white, giving them superior aesthetic properties to conventional prostheses. Their disadvantages include the retention and fatigue resistance of PEEK clasps, which were inferior to those of metal clasps. PEEK removable prostheses have wear resistance similar to that of metal alloys, although they have somewhat poor elastic strength and low hardness, increasing the risk of fractures.
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