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Does Printing Orientation Matter in PolyJet 3D Printed Teeth for Endodontics? A Micro-CT Analysis

2025-12-18Artigo científico Acesso aberto
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datacite.subject.fosCiências Médicas::Ciências da Saúde
datacite.subject.fosEngenharia e Tecnologia
datacite.subject.sdg03:Saúde de Qualidade
datacite.subject.sdg09:Indústria, Inovação e Infraestruturas
datacite.subject.sdg12:Produção e Consumo Sustentáveis
dc.contributor.authorBarbosa, Cláudia
dc.contributor.authorReis, Tiago
dc.contributor.authorReis, José B.
dc.contributor.authorFranco, Margarida
dc.contributor.authorBatista, Catarina
dc.contributor.authorRuben, Rui B.
dc.contributor.authorMartín-Biedma, Benjamín
dc.contributor.authorMartín-Cruces, Jose
dc.date.accessioned2026-01-21T15:15:47Z
dc.date.available2026-01-21T15:15:47Z
dc.date.issued2025-12-18
dc.descriptionArticle number 471.
dc.description.abstractThis study aimed to identify the optimal printing orientation (X, Y, or Z axis) and positioning of a mandibular molar presenting an isthmus using PolyJet™ technology. The influence of these parameters on dimensional accuracy and on the behavior of 3D-printed teeth (3DPT) during endodontic preparation with ProTaper Gold® system was evaluated. Six groups (XA, XB, YA, YB, ZA, ZB; n = 10) were printed with different axis orientations and distinct isthmus positions relative to the build platform. All samples underwent micro-computed tomography scanning before and after endodontic preparation. Regarding preoperative analyses—canal volume, centroids, and total tooth volume and area—no significant differences were found between groups XA–YA or XB–YB (p > 0.05), supporting their comparability. In contrast, groups ZA and ZB differed significantly from all others (p < 0.05), failing to meet equivalence required for further comparison, and were therefore excluded. Postoperative evaluation—volume change, centroid displacement, transportation, and unprepared areas—revealed no significant differences between XA–YA and XB–YB. Within the limitations of this study, both printing orientation and position affected the accuracy and repeatability of 3DPT, with positioning exerting the greatest influence, while their behavior towards endodontic preparation remained consistent across orientations.eng
dc.description.sponsorshipThis research was funded by Fundação para a Ciência e a Tecnologia (FCT) for its financial support via the project CDRSP Funding (DOI: 10.54499/UID/04044/2025) and ARISE funding (DOI:10.54499/LA/P/0112/2020).
dc.identifier.citationBarbosa, C.; Reis, T.; Reis, J.B.; Franco, M.; Batista, C.; Ruben, R.B.; Martín-Biedma, B.; Martín-Cruces, J. Does Printing Orientation Matter in PolyJet 3D Printed Teeth for Endodontics? A Micro-CT Analysis. J. Funct. Biomater. 2025, 16, 471. https://doi.org/10.3390/jfb16120471
dc.identifier.doi10.3390/jfb16120471
dc.identifier.issn2079-4983
dc.identifier.urihttp://hdl.handle.net/10400.8/15445
dc.language.isoeng
dc.peerreviewedyes
dc.publisherMDPI
dc.relationCentre for Rapid and Sustainable Product Development
dc.relationAdvanced Production and Intelligent Systems
dc.relation.hasversionhttps://www.mdpi.com/2079-4983/16/12/471
dc.relation.ispartofJournal of Functional Biomaterials
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectPolyJet
dc.subject3D printing
dc.subject3D printed teeth
dc.subjectEndodontics
dc.titleDoes Printing Orientation Matter in PolyJet 3D Printed Teeth for Endodontics? A Micro-CT Analysiseng
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleCentre for Rapid and Sustainable Product Development
oaire.awardTitleAdvanced Production and Intelligent Systems
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/UID%2FMulti%2F04044%2F2019/PT
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/6817 - DCRRNI ID/LA%2FP%2F0112%2F2020/PT
oaire.citation.issue12
oaire.citation.titleJournal of Functional Biomaterials
oaire.citation.volume16
oaire.fundingStream6817 - DCRRNI ID
oaire.fundingStream6817 - DCRRNI ID
oaire.versionhttp://purl.org/coar/version/c_970fb48d4fbd8a85
person.familyNamedos Santos Sousa Reis Faria
person.familyNameFranco
person.familyNameBatista
person.familyNameRuben
person.givenNameTiago Filipe
person.givenNameMargarida
person.givenNameCatarina
person.givenNameRui
person.identifier2300879
person.identifier1801709
person.identifier46426
person.identifier.ciencia-id8314-6E42-18C0
person.identifier.ciencia-id3818-262C-0441
person.identifier.ciencia-idA919-CFDC-B9E9
person.identifier.ciencia-id0A14-A279-7C05
person.identifier.orcid0000-0002-4848-744X
person.identifier.orcid0000-0001-9659-7646
person.identifier.orcid0000-0003-0368-2011
person.identifier.orcid0000-0002-5407-0579
person.identifier.ridM-1119-2014
person.identifier.scopus-author-id55885992900
person.identifier.scopus-author-id7103127401
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
project.funder.nameFundação para a Ciência e a Tecnologia
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