In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow

This in-vitro study was designed to investigate whether conventionally produced casts and printed casts for orthodontic purposes show comparable full-arch accuracy. To produce casts, either a conventional impression or a digital data set is needed. A fully dentate all ceramic master cast was digitiz...

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Main Authors: Sven Reich, Hannah Herstell, Stefan Raith, Christina Kühne, Saskia Berndt
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-01-01
Series:PLoS ONE
Online Access:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10016668/?tool=EBI
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author Sven Reich
Hannah Herstell
Stefan Raith
Christina Kühne
Saskia Berndt
author_facet Sven Reich
Hannah Herstell
Stefan Raith
Christina Kühne
Saskia Berndt
author_sort Sven Reich
collection DOAJ
description This in-vitro study was designed to investigate whether conventionally produced casts and printed casts for orthodontic purposes show comparable full-arch accuracy. To produce casts, either a conventional impression or a digital data set is needed. A fully dentate all ceramic master cast was digitized with an industrial scanner to obtain a digital reference cast [REF]. Intraoral scans [IOS] and alginate impressions were taken from the master cast so that ten printed and ten gypsum casts were obtained. The printed casts [DLP] were digitized by an industrial scanner and as well as the gypsum casts [GYPSUM]. The following absolute mean trueness evaluations by superimposition were accomplished: [REF vs. GYPSUM]; [REF vs. DLP]; [REF vs. IOS]; [IOS vs. DLP]. For precision analysis the data sets of [GYPSUM], [IOS] and [DLP] were available. The absolute mean trueness values were 68 μm ± 15 μm for [REF vs. GYPSUM], 46 μm ± 4 μm for [REF vs. DLP], 20 μm ± 2 μm for [REF vs. IOS] and 41 μm ± 4 μm for [IOS vs. DLP]. [REF vs. GYPSUM] and [REF vs. DLP], [REF vs. IOS], [REF vs. DLP] and [IOS vs. DLP] showed statistically significant differences. The precision values were 56 μm ± 17 μm for [GYPSUM], 25 μm ± 9 μm for [DLP] and 12 μm ± 2 μm for [IOS] and differed significantly among each other. In the present study the print workflow revealed superior results in comparison to the conventional workflow. Due to contrary deviations in the [REF vs. IOS] and the [IOS vs. DLP] data sets the overall trueness deviations was enhanced.
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spelling doaj.art-79b1fd78bbc54638a37e69263f9355322023-03-20T05:31:32ZengPublic Library of Science (PLoS)PLoS ONE1932-62032023-01-01183In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflowSven ReichHannah HerstellStefan RaithChristina KühneSaskia BerndtThis in-vitro study was designed to investigate whether conventionally produced casts and printed casts for orthodontic purposes show comparable full-arch accuracy. To produce casts, either a conventional impression or a digital data set is needed. A fully dentate all ceramic master cast was digitized with an industrial scanner to obtain a digital reference cast [REF]. Intraoral scans [IOS] and alginate impressions were taken from the master cast so that ten printed and ten gypsum casts were obtained. The printed casts [DLP] were digitized by an industrial scanner and as well as the gypsum casts [GYPSUM]. The following absolute mean trueness evaluations by superimposition were accomplished: [REF vs. GYPSUM]; [REF vs. DLP]; [REF vs. IOS]; [IOS vs. DLP]. For precision analysis the data sets of [GYPSUM], [IOS] and [DLP] were available. The absolute mean trueness values were 68 μm ± 15 μm for [REF vs. GYPSUM], 46 μm ± 4 μm for [REF vs. DLP], 20 μm ± 2 μm for [REF vs. IOS] and 41 μm ± 4 μm for [IOS vs. DLP]. [REF vs. GYPSUM] and [REF vs. DLP], [REF vs. IOS], [REF vs. DLP] and [IOS vs. DLP] showed statistically significant differences. The precision values were 56 μm ± 17 μm for [GYPSUM], 25 μm ± 9 μm for [DLP] and 12 μm ± 2 μm for [IOS] and differed significantly among each other. In the present study the print workflow revealed superior results in comparison to the conventional workflow. Due to contrary deviations in the [REF vs. IOS] and the [IOS vs. DLP] data sets the overall trueness deviations was enhanced.https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10016668/?tool=EBI
spellingShingle Sven Reich
Hannah Herstell
Stefan Raith
Christina Kühne
Saskia Berndt
In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow
PLoS ONE
title In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow
title_full In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow
title_fullStr In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow
title_full_unstemmed In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow
title_short In-vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow
title_sort in vitro accuracy of casts for orthodontic purposes obtained by a conventional and by a printer workflow
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10016668/?tool=EBI
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