{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,7]],"date-time":"2025-10-07T04:40:33Z","timestamp":1759812033523,"version":"build-2065373602"},"reference-count":37,"publisher":"MDPI AG","issue":"19","license":[{"start":{"date-parts":[[2025,10,4]],"date-time":"2025-10-04T00:00:00Z","timestamp":1759536000000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"European Union Regional Development Fund","award":["001-P-001646"],"award-info":[{"award-number":["001-P-001646"]}]},{"DOI":"10.13039\/501100011033","name":"Spanish State Research Agency","doi-asserted-by":"crossref","award":["PID2020-115647RB-C21"],"award-info":[{"award-number":["PID2020-115647RB-C21"]}],"id":[{"id":"10.13039\/501100011033","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":["www.mdpi.com"],"crossmark-restriction":true},"short-container-title":["Polymers"],"abstract":"<jats:p>The purpose of this study is to characterize two different 3D-printed materials, glass fiber-filled 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.<\/jats:p>","DOI":"10.3390\/polym17192684","type":"journal-article","created":{"date-parts":[[2025,10,6]],"date-time":"2025-10-06T11:42:49Z","timestamp":1759750969000},"page":"2684","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Characterization of 3D-Printed Glass Fiber-Filled and Calcium Carbonate-Filled Polypropylene Components for Surgical Planning"],"prefix":"10.3390","volume":"17","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-9667-2420","authenticated-orcid":false,"given":"N\u00faria","family":"Adell-G\u00f3mez","sequence":"first","affiliation":[{"name":"3D4H Unit, Hospital Sant Joan de D\u00e9u, Santa Rosa 39-57, 08950 Esplugues de Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4058-4162","authenticated-orcid":false,"given":"Irene","family":"Buj-Corral","sequence":"additional","affiliation":[{"name":"TECNOFAB Research Group, Barcelona School of Industrial Engineering (ETSEIB), Universitat Polit\u00e8cnica de Catalunya (UPC), Av. Diagonal, 647, 08028 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4241-9558","authenticated-orcid":false,"given":"Miquel","family":"Domingo-Espin","sequence":"additional","affiliation":[{"name":"Advanced Manufacturing Systems Unit, Eurecat\u2014Technology Centre of Catalonia, Av. Universitat Aut\u00f2noma, 23, Cerdanyola del Vall\u00e8s, 08290 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-4982-206X","authenticated-orcid":false,"given":"Jordi","family":"Llum\u00e0","sequence":"additional","affiliation":[{"name":"TECNOFAB Research Group, Barcelona East School of Engineering (EEBE), Universitat Polit\u00e8cnica de Catalunya (UPC), Av. Eduard Maristany, 16, 08019 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-9273-5762","authenticated-orcid":false,"given":"J. Antonio","family":"Travieso-Rodr\u00edguez","sequence":"additional","affiliation":[{"name":"TECNOFAB Research Group, Barcelona East School of Engineering (EEBE), Universitat Polit\u00e8cnica de Catalunya (UPC), Av. Eduard Maristany, 16, 08019 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2642-930X","authenticated-orcid":false,"given":"Josep","family":"Rubio-Palau","sequence":"additional","affiliation":[{"name":"Maxillofacial Surgery Department, Hospital Sant Joan de D\u00e9u, Santa Rosa 39-57, 08950 Esplugues de Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"C\u00e9sar","family":"Garc\u00eda-Fontecha","sequence":"additional","affiliation":[{"name":"Orthopedic Surgery Department, Hospital Sant Joan de D\u00e9u, Santa Rosa 39-57, 08950 Esplugues de Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alejandro","family":"Dom\u00ednguez-Fern\u00e1ndez","sequence":"additional","affiliation":[{"name":"TECNOFAB Research Group, Barcelona School of Industrial Engineering (ETSEIB), Universitat Polit\u00e8cnica de Catalunya (UPC), Av. Diagonal, 647, 08028 Barcelona, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1151-3042","authenticated-orcid":false,"given":"Arnau","family":"Valls-Esteve","sequence":"additional","affiliation":[{"name":"3D4H Unit, Hospital Sant Joan de D\u00e9u, Santa Rosa 39-57, 08950 Esplugues de Llobregat, Spain"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1968","published-online":{"date-parts":[[2025,10,4]]},"reference":[{"key":"ref_1","unstructured":"(2015). Additive Manufacturing. General Principles. Terminology (Standard No. ISO\/ASTM 52900:2015)."},{"key":"ref_2","first-page":"283","article-title":"Applications of 3D printing in healthcare","volume":"13","author":"Dodziuk","year":"2016","journal-title":"Kardiochir. 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