Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations

Abstract This study evaluated the marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation scanned at four finish line locations. The right maxillary first molar tooth preparation model was fabricated using a ceramic material and placed in four fini...

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Autores principales:	Keunbada Son, Young-Tak Son, Ji-Min Lee, Kyu-Bok Lee
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/86d651b992e542c18093c835a5705ba2
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spelling	oai:doaj.org-article:86d651b992e542c18093c835a5705ba22021-12-02T18:34:06ZMarginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations10.1038/s41598-021-93455-72045-2322https://doaj.org/article/86d651b992e542c18093c835a5705ba22021-07-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-93455-7https://doaj.org/toc/2045-2322Abstract This study evaluated the marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation scanned at four finish line locations. The right maxillary first molar tooth preparation model was fabricated using a ceramic material and placed in four finish line locations (supragingival, equigingival, subgingival, and subgingival with a cord). Intraoral scanning was performed. Crowns were designed based on the scanned area. Interim crowns were fabricated using a stereolithography three-dimensional (3D) printer (N = 16 per location). Marginal and internal fit were evaluated with a silicone replica technique. Intaglio surface trueness was evaluated using a 3D inspection software. One-way analysis of variance and Tukey HSD test were performed for comparisons (α = 0.05). The marginal and internal fit showed significant differences according to locations (P < 0.05); the marginal fit showed the best results in the supragingival finish line (P < 0.05). Intaglio surface trueness was significantly different in the marginal region, with the highest value in the subgingival location (P < 0.05). Crowns fabricated on the subgingival finish line caused inaccurate marginal fit due to poor fabrication reproducibility of the marginal region. The use of an intraoral scanner should be decided on the clinical situation and needs.Keunbada SonYoung-Tak SonJi-Min LeeKyu-Bok LeeNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-9 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Keunbada Son Young-Tak Son Ji-Min Lee Kyu-Bok Lee Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations
description	Abstract This study evaluated the marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation scanned at four finish line locations. The right maxillary first molar tooth preparation model was fabricated using a ceramic material and placed in four finish line locations (supragingival, equigingival, subgingival, and subgingival with a cord). Intraoral scanning was performed. Crowns were designed based on the scanned area. Interim crowns were fabricated using a stereolithography three-dimensional (3D) printer (N = 16 per location). Marginal and internal fit were evaluated with a silicone replica technique. Intaglio surface trueness was evaluated using a 3D inspection software. One-way analysis of variance and Tukey HSD test were performed for comparisons (α = 0.05). The marginal and internal fit showed significant differences according to locations (P < 0.05); the marginal fit showed the best results in the supragingival finish line (P < 0.05). Intaglio surface trueness was significantly different in the marginal region, with the highest value in the subgingival location (P < 0.05). Crowns fabricated on the subgingival finish line caused inaccurate marginal fit due to poor fabrication reproducibility of the marginal region. The use of an intraoral scanner should be decided on the clinical situation and needs.
format	article
author	Keunbada Son Young-Tak Son Ji-Min Lee Kyu-Bok Lee
author_facet	Keunbada Son Young-Tak Son Ji-Min Lee Kyu-Bok Lee
author_sort	Keunbada Son
title	Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations
title_short	Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations
title_full	Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations
title_fullStr	Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations
title_full_unstemmed	Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations
title_sort	marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/86d651b992e542c18093c835a5705ba2
work_keys_str_mv	AT keunbadason marginalandinternalfitandintagliosurfacetruenessofinterimcrownsfabricatedfromtoothpreparationoffourfinishlinelocations AT youngtakson marginalandinternalfitandintagliosurfacetruenessofinterimcrownsfabricatedfromtoothpreparationoffourfinishlinelocations AT jiminlee marginalandinternalfitandintagliosurfacetruenessofinterimcrownsfabricatedfromtoothpreparationoffourfinishlinelocations AT kyuboklee marginalandinternalfitandintagliosurfacetruenessofinterimcrownsfabricatedfromtoothpreparationoffourfinishlinelocations
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Marginal and internal fit and intaglio surface trueness of interim crowns fabricated from tooth preparation of four finish line locations

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