A. Specimen made out of Erkodur foil (ERKODENT, Germany); B. A pack of Erkodur foils (ERKODENT, Germany).

 
 
  Part of: Stoev YY, Uzunov TT, Stoyanova NS, Grozdanova-Uzunova RG, Kosturkov DN, Taneva IK (2023) Mechanical properties of materials for 3D printed orthodontic retainers. Folia Medica 65(6): 986-992. https://doi.org/10.3897/folmed.65.e107299