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<p>This study presents a comprehensive comparison between 3D printed Polyether ether ketone (PEEK) and Titanium alloys (Ti-6Al-4&#xa0;V) for potential dental bone screw applications. High-temperature resistant Fused Deposition Modeling (FDM) was employed to fabricate PEEK samples under varied process parameters. Detailed characterization was conducted to evaluate Microstructural integrity though Scanning Electron Microscopy (SEM). Thermal stability by Thermogravimetric Analysis (TGA) and differential Scanning calorimeter (DSC), and Mechanical properties (tensile and impact strength). Also, Biocompatibility was assessed using MTT (3-(4,5-dimethylthiazol-2,5-diphenyltetrazolium bromide) cytotoxicity assays and cell culture studies. SEM analysis revealed improved interlayer bonding and reduced voids at higher printing temperatures and lower layer thicknesses. Mechanical test demonstrated that while titanium exhibited higher tensile strength (850&#xa0;MPa), PEEK showed superior impact resistance 50KJ/m2 contributing to better shock absorption. Additionally, the elastic modulus of PEEK 4.6GPA closely matched that of human bone above 10GPa, mitigating stress shielding. Biocompatibility results confirmed high cell viability (85–90%) for 3D-printed PEEK, in line with ISO 10993-5 standards, and comparable to Titanium. The non-toxic nature and thermal stability of PEEK further support its suitability for biomedical applications. This comparative analysis highlights the potential of 3D-printed PEEK as a viable alternative to conventional Titanium alloys for dental implant applications.</p>

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A comparative study of 3D printed PEEK and titanium (Ti-6Al-4 V) on mechanical properties, and biocompatibility for dental application

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年4月28日

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  • Shimelis Tamene Gobena,
  • Abraham Debebe Woldeyohannes

摘要

This study presents a comprehensive comparison between 3D printed Polyether ether ketone (PEEK) and Titanium alloys (Ti-6Al-4 V) for potential dental bone screw applications. High-temperature resistant Fused Deposition Modeling (FDM) was employed to fabricate PEEK samples under varied process parameters. Detailed characterization was conducted to evaluate Microstructural integrity though Scanning Electron Microscopy (SEM). Thermal stability by Thermogravimetric Analysis (TGA) and differential Scanning calorimeter (DSC), and Mechanical properties (tensile and impact strength). Also, Biocompatibility was assessed using MTT (3-(4,5-dimethylthiazol-2,5-diphenyltetrazolium bromide) cytotoxicity assays and cell culture studies. SEM analysis revealed improved interlayer bonding and reduced voids at higher printing temperatures and lower layer thicknesses. Mechanical test demonstrated that while titanium exhibited higher tensile strength (850 MPa), PEEK showed superior impact resistance 50KJ/m2 contributing to better shock absorption. Additionally, the elastic modulus of PEEK 4.6GPA closely matched that of human bone above 10GPa, mitigating stress shielding. Biocompatibility results confirmed high cell viability (85–90%) for 3D-printed PEEK, in line with ISO 10993-5 standards, and comparable to Titanium. The non-toxic nature and thermal stability of PEEK further support its suitability for biomedical applications. This comparative analysis highlights the potential of 3D-printed PEEK as a viable alternative to conventional Titanium alloys for dental implant applications.