Applications of polyetheretherketone (PEEK) in oral implantology and prosthodontics

Abstract

Considering mechanical and physical properties similar to bone, PEEK can be used in many areas of dentistry. Improving the bioactivity of PEEK dental implants without compromising their mechanical properties is a major challenge. Further modifications and improving the material properties may increase its applications in clinical dentistry.

Effects of different sulfuric acid etching concentrations on PEEK surface bonding to resin composite

“…PEEK has excellent mechanical properties, for example, creep resistance, low water absorption and high fracture resistance [1][2][3][4] . It has been proposed as a functional and esthetic metalfree material in various dental applications, such as implants 5) , temporary abutments 6,7) , orthodontic wires 8) , removable prostheses 9) and fixed prostheses 10) . Veneering resins are recommended to cover the underneath grayish and opaque color of PEEK-based restorations to mimic the natural tooth appearance 11) .…”

Polyetheretherketone (PEEK) as a medical and dental material. A literature review

“…Five were clinical reports [2,6,8,18,24] and 35 were papers on PEEK surface treatments [13][14][15][16][17] how the bioactivity of PEEK can be improved [1,21]; the characteristics of CFR-PEEK [3,7,[19][20]; the biocompatibility of PEEK [5]; PEEK applications [4,8,[10][11]30]; PEEK biofilm formation [22,[31][32][33][34], PEEK as an abutment material and as an implant material [12,23,[25][26][27][28][29]35,40] and the use of CAD-CAM with PEEK [36][37][38][39]. …”

“…Three papers [30][31][32] concluded that biofilm formation on the surface of PEEK was equal to, or lower than on the surface of zirconia or titanium.…”

“…PEEK is currently used as a provisional abutment, because this material has been demonstrated to reduce stress shielding around the implant [23][24][25][27][28]. However, PEEK is not used as a definitive abutment material because its fracture resistance is lower than that of titanium [25,[29][30].…”

“…However, PEEK provisional abutments showed less fracture resistance than titanium abutments, therefore the use of PEEK abutments is recommended for placement of provisional fixed prosthesis for 1-3 months, in contrast to titanium temporary abutments, which are recommended longer periods in the mouth (6-12 months) [29][30].…”