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REEK as a material for making fixed partial dentures with CAD/CAM systems

Polyetheretherket (PEEK) is a synthetic, tooth-colored polymeric material that has been used as a biomaterial in orthopedics for many years. PEEK is a partially crystallized, thermoplastic material, resistant to high temperature, with a melting point of 400 ° C and is suitable for pressing various dental prostheses. The purpose of this report is to present the possibilities of PEEK as a material for making fixed partial dentures with CAD/CAM systems. Material and methods: Examples are presented for the production of various structures from PEEK with the help of CAD / CAM systems or according to the methodology Press2, on which a composite inlay is made. Results: The chip resistance of CAD / CAM fabricated PEEK fixed prostheses is much higher than that of lithium disilicate glass-ceramics, alumina and zirconium. Due to its mechanical and physical properties, which are similar to those of bone and dentin, PEEK can be used for a number of applications in dentistry. Conclusion: PEEK is an attractive material that can be used in the manufacture of fixed and removable dentures using CAD/CAM systems, due to its excellent mechanical properties compared to materials such as acrylic plastics. Further studies and clinical trials are needed to investigate the application of this material and possible modifications for further applications in dentistry.