The search terms that the reviewers used alone or in combination were “PEEK”, “CAD-CAM”, “dental”, “dentistry”. The purpose of this study was to review the current published literature on CAD-CAM PEEK dental prostheses.Ī literature search was conducted using several electronic databases (MEDLINE, PubMed, Scopus) for studies related to the use of PEEK for the fabrication of CAD-CAM prostheses. Although PEEK is becoming widespread in clinical practice, only a few studies are available focusing on the use of this material for CAD-CAM prostheses. Compared to rigid framework materials such as zirconium oxide and metal alloys, PEEK has a low modulus of elasticity of 4 GPa, and is as elastic as bone, providing a cushioning effect and reduction of stresses transferred to the abutment teeth. PEEK is a material with high biocompatibility, good mechanical properties, high temperature resistance, chemical stability, polishability, good wear resistance, low plaque affinity and high bond strength with veneering composites and luting cements. It has been also used for the manufacturing of dental implants, implant abutments, healing abutments and occlusal splints. Polyetheretherketone (PEEK) is a linear, aromatic, semi-crystalline thermoplastic, high performance polymer recently used in dentistry as a framework material for metal-free fixed dental prostheses, removable dental prostheses, implant-supported fixed prostheses, implant-retained overdentures, endocrowns and resin bonded fixed dental prostheses. The rapid evolution of computer-aided design and computer-aided manufacturing (CAD-CAM) technology led to the introduction of new materials that could be precisely milled for the fabrication of dental prostheses. The Creative Commons Public Domain Dedication waiver ( ) applies to the data made available in this article, unless otherwise stated in a credit line to the data. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. Open AccessThis article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made.
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