2026-04-13T15:11:47Zhttps://recercat.cat/oai/request
oai:recercat.cat:2117/4451202026-01-30T06:13:32Zcom_2072_1033col_2072_452950
RECERCAT author Adell Gomez, Nuria author Buj Corral, Irene author Domingo Espín, Miquel author Llumà Fuentes, Jordi author Travieso Rodríguez, José Antonio author Rubio Palau, Josep author García Fontecha, César author Domínguez Fernandez, Alejandro author Valls Esteve, Arnau 2025-10-04 The purpose of this study is to characterize two different 3D-printed materials, glass fiberfilled polypropylene (GF-PP) and calcium carbonate-filled polypropylene (CaCO3-PP), which make it possible to obtain surgical bone models at a reasonable cost. The methodology involved selecting two filaments, among six, which showed better processability in the fused filament fabrication (FFF) process. Then, samples of the two selected materials were 3D printed, followed by characterization in terms of dimensional error, porosity, surface roughness, and mechanical strength. The results showed that both materials can be sterilized, with an increase in dimensional error and porosity after sterilization and slight changes in roughness and tensile strength. Additionally, anatomical models of mandible and femur bones were clinically validated by surgeons.This research was co-financed by the European Union Regional Development Fund within the framework of the ERDF Operational Program of Catalonia 2014–2020 with a grant of 50% of total cost eligible, project BASE3D, grant number 001-P-001646, and also by the Spanish State Research Agency (Agencia Estatal de Investigación, AEI) under project PID2020-115647RB-C21.Peer ReviewedPostprint (published version) http://creativecommons.org/licenses/by/4.0/ Open Access Attribution 4.0 International Àrees temàtiques de la UPC::Enginyeria dels materials::Disseny i selecció de materials FFF FDM GF-PP CaCO3-PP Dimensional accuracy Roughness Porosity Tensile strength Characterization of 3D-printed glass fiber-filled and calcium carbonate-filled polypropylene components for surgical planning Article