![]() ![]() Koutouzis evaluated soft and hard tissue responses to titanium and provisional PEEK abutments, and reported that no significant difference between PEEK and Ti was found in soft- and hard-tissue responses in 3 the months after the provisional abutment. One method for obtaining the emergence profile in areas around dental implants was shown by Becker (2012), who used a provisional abutment made of PEEK. Although PEEK can be applied as a healing abutment or a provisional abutment, no information is available on a final abutment. If PEEK is used as a dental implant body, it may exhibit lower stress shielding than Ti due to the closer compatibility of the mechanical properties of PEEK and bone. Applications in the implant body have been limited to bench tests, and there is no report on its application to the mandible as the implant body. PEEK has been applied as an implant material in the implant body, abutment, and superstructure. Fourth, PEEK is a versatile foundation material that can be tailored to a particular purpose by changing its bulk or surface properties. Third, it does not have a metallic color it is beige with a touch of gray, and has a more aesthetic appearance than Ti. Second, it is radiolucent and causes fewer artifacts on magnetic resonance imaging. Certain studies have shown that titanium is an allergen. First, it causes fewer hypersensitive and allergic reactions. PEEK has some clinical advantages as a dental implant material compared to Ti. This article summarizes the current research of the application of PEEK for dental implants, especially for the improvement of surface and body modifications of PEEK for dental implant applications.Ĭhemical structure of polyetheretherketone. It can be applied to materials as a superstructure, implant abutment, or implant body. PEEK is a semi-crystalline linear polycyclic thermoplastic that was developed in 1978. ![]() Polymeric compounds, such as polyetheretherketone (PEEK), have been developed as additional substitutes. Many researchers have undertaken efforts to develop substitutes for Ti dental implants, such as zirconia, which has a high elastic modulus and low temperature degradation. The metallic appearance of Ti materials may also be problematic, as highly aesthetic restorations are becoming important. In addition, Ti materials have been implicated in clinical problems, such as occasional metal hypersensitivity and allergies, surface degradation and contamination related to peri-implantitis, and scattered radiation. However, Ti materials have an elastic modulus significantly higher than that of bone (titanium: 110 GPa cortical bone: 14 GPa), and the difference may result in inadequate stress-shielding, bone resorption, and implant fracture. Ti materials possess good physicochemical characteristics, mechanical properties, biocompatibility, and high resistance to fatigue stress and corrosion. Titanium (Ti) and its alloys have been used as dental implants since Brånemark introduced them at the end of the 1960s. ![]()
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