Publication Date: 2020/10/20
Abstract: Polyetheretherketone (PEEK) have been emerging as an excellent biomaterial substitute for metal based implants due to its chemical resistance, rigid semicrystalline nature with bone-like toughness, greater biocompatibility, and superior mechanical properties. The present evaluation of the available literature search is to provide a broad review on properties and bioactivity of PEEK material with emphasis on modified PEEK dental implants to overcome its limited bioactivity as a material of choice. A structured literature search for articles written in the English language in PubMed, MEDLINE, Embase, Google Scholar and Web of Science databases from 2000 till date was retrieved by using MeSH terms “Dental implant ”, “PEEK Dental implant”’, “PEEK crown”, “Osseo-integration”, “PEEK”, “Poly-ether-etherketone” and “implant materials”. PEEK possesses compound structure with promising aesthetics and functional properties. Surface modifications of PEEK with Hydroxyapatite (HA), Fluoro-hydroxyapatite crystals (HAF) showed superior Osseo-conductive property along with antibacterial effect. TiO2 coatings on PEEK implant induced new bone formation more prominently with increase in shear bond strength of bone. Numerous studies have shown less wear resistance of carbon fiber (CFR-PEEK) or glass fiber reinforced (GFR-PEEK) PEEK material during mastication and brushing than Titanium based implants. Considering the long term clinical success of implant prosthesis, reinforced-PEEK material could be a potent alternative to titanium in high stress situations such as bruxism, excessive crown height space and in allergic responses.
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