“…Common implant materials are polymethylmethacrylate (PMMA), polyetheretherketone (PEEK), polyethylene, hydroxyapatite, and titanium (Kwarcinski et al, 2017 ). PEEK delivers the most satisfactory results for large‐sized cranial defects, especially considering its physical and mechanical characteristics (strength, stiffness, durability) and its suitability for 3D printing (Mohan et al, 2016 ; Petersmann et al, 2019 ). PMMA is characterized by its obtainability, processability, and affordability, rendering it one of the most frequently used materials for implant design.…”