Influence of print orientation and wet-dry storage time on the intaglio accuracy of additively manufactured occlusal devices

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dc.contributor.authorRevilla León, Marta
dc.contributor.authorCascos Sánchez, Rocío
dc.contributor.authorZeitler, Jonathan M.
dc.contributor.authorBarmak, Abdul B.
dc.contributor.authorKois, John C.
dc.contributor.authorGómez Polo, Miguel Ángel
dc.date.accessioned2023-06-22T12:39:14Z
dc.date.available2023-06-22T12:39:14Z
dc.date.issued2023-01-10
dc.descriptionCRUE-CSIC (Acuerdos Transformativos 2022)
dc.description.abstractStatement of problem Different factors can affect the manufacturing accuracy of additively manufactured dental devices; however, the influence of print orientation and wet-dry storage time on their intaglio accuracy remains uncertain. Purpose The purpose of this in vitro study was to assess the effect of print orientation (0, 45, 70, and 90 degrees) and wet-dry storage time (0, 30, 60, and 90 days) on the intaglio accuracy of additively manufactured occlusal devices. Material and methods An occlusal device design was obtained in a standard tessellation language (STL) file format (control file) which was used to fabricate all the specimens by using a stereolithography printer (Form 3+) and a biocompatible resin material (Dental LT Clear Resin, V2). Four groups were created based on the print orientation used to manufacture the specimens: 0, 45, 70, and 90 degrees. Each group was divided into 4 subgroups depending on the time elapsed between manufacturing and accuracy evaluation: 0, 30, 60, and 90 days. For the subgroup 0, a desktop scanner (T710) was used to digitize all the specimens. The 30-day subgroup specimens were stored for 30 days with the following daily storage protocol: 16 hours inside a dry lightproof container, followed by 8 hours in artificial saliva (1700-0305 Artificial Saliva) inside the same lightproof container. The specimens were then digitized by following the same procedures used for subgroup 0. For the subgroups 60 and 90, the identical procedures described for subgroup 30 were completed but after 60 and 90 days of storage, respectively. The reference STL file was used to measure the intaglio discrepancy with the experimental scans obtained among the different subgroups by using the root mean square error calculation. Two-way ANOVA and post hoc Tukey pairwise comparison tests were used to analyze the data (α=.05). Results Print orientation (P<.001) and usage time (P<.001) were significant predictors of the trueness value obtained. Additionally, the 0-degree print orientation at day 0 group demonstrated the best trueness value among all the groups tested (P<.05). No significant trueness discrepancies were found among the 45-, 70-, and 90-degree print orientation, or among the 30, 60, and 90 days of storage. A significant precision difference was found in the variance between print orientation groups across usage time subgroups. Conclusions The print orientation and wet-dry storage times tested influenced the trueness and precision of the intaglio surfaces of the occlusal devices manufactured with the 3D printer and material selected.
dc.description.departmentDepto. de Odontología Conservadora y Prótesis
dc.description.facultyFac. de Odontología
dc.description.refereedTRUE
dc.description.statuspub
dc.eprint.idhttps://eprints.ucm.es/id/eprint/76730
dc.identifier.doi10.1016/j.prosdent.2022.12.005
dc.identifier.issn00223913
dc.identifier.officialurlhttps://doi.org/10.1016/j.prosdent.2022.12.005
dc.identifier.relatedurlhttps://www.sciencedirect.com/science/article/pii/S002239132200765X?via%3Dihub
dc.identifier.urihttps://hdl.handle.net/20.500.14352/72995
dc.journal.titleThe Journal of Prosthetic Dentistry
dc.language.isoeng
dc.publisherElsevier
dc.rightsAtribución-NoComercial-SinDerivadas 3.0 España
dc.rights.accessRightsopen access
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/3.0/es/
dc.subject.ucmOdontología (Odontología)
dc.subject.unesco3213.13 Ortodoncia-Estomatología
dc.titleInfluence of print orientation and wet-dry storage time on the intaglio accuracy of additively manufactured occlusal devices
dc.typejournal article
dspace.entity.typePublication
relation.isAuthorOfPublication9700c70b-34f2-4d6a-8e12-92587c9186fb
relation.isAuthorOfPublication.latestForDiscovery9700c70b-34f2-4d6a-8e12-92587c9186fb
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