Akademik Veri Yönetim Sistemi
48th European Prosthodontic Association (EPA) and 27th Turkish Prosthodontics and Implantology Association (TPID) Annual Congress, Nevşehir, Türkiye, 11 - 13 Eylül 2025, ss.1-8, (Özet Bildiri)
PURPOSE: Polyether ether ketone material is considered as an important thermoplastic material due to its properties.. The purpose of this study is to improve some mechanical and physical properties of dental (polyether ether ketone) PEEK. Two types of fibers reinforced material were used; carbon fibers and glass fibers. Different mechanical properties will be measured at different time intervals. MATERIALS-METHODS: 160 samples were produced. 4 groups of different PEEK materials were used; extrusion PEEK, compression PEEK, carbon fibers PEEK and glass fibers PEEK (PPE, PPC, CFP and GFP). All specimens were tested in dry storage and then retested after incubation in Ringer's solution for 1 day, 1 week and 3 weeks at 37°C. Compression, Bending, tensile, and Vickers Hardness tests were applied.. Optical microscope and FESEM used to investigate the fracture morphology of samples at different test time intervals. ANOVA and post-hoc tests were used for statistical analysis. RESULTS: compression, tensile, bending and hardness tests; PEEK (CFP and GFP) reinforced with carbon and glass fibers, compared to all other PEEK groups showed higher strength values. Incubation with Ringer's solution at different time intervals affected the one-week and three-week incubation time values for all PEEK sample types. Optical microscope and FESEM examinations showed; Tension and rupture frequency were significantly higher in the reinforcement fibers group (CFP and GFP) than in the other groups No significant difference between the reinforcement fiber groups (CFP and GFP) in terms of fracture and bending patterns. CONCLUSION: our findings revealed that each PEEK type has its specific meachanical behavior related to each test applied. In the absence of reinforcement fibers, the mechanical test values were observed as pure PEEK material properties. The use of reinforced fiber peek has shown greater stress-strain value and increased the rigidity to a higher level.
Keywords: PEEK, Carbon fibers, Glass fibers, Mechanical properties, PEEK storage