Colorimetric analysis of dental porcelains: effects of the background color
Autor(a) principal: | |
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Data de Publicação: | 2022 |
Outros Autores: | , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0366-69132022683853190 http://hdl.handle.net/11449/223750 |
Resumo: | This study evaluated how the background (white or gray) affects the color parameter measurements and color difference calculations (∆Eab and ∆E00) of dental ceramics. Disc-shaped feldspathic ceramic specimens were prepared with two shades (enamel and dentin) and stained in red wine (7-day immersion). A spectrophotometer was used to perform color measurements (CIEL*a*b* coordinates) over gray and white backgrounds after the specimen preparation and after staining. The color difference was calculated with CIEDE2000 (ΔE00) and CIELAB (ΔEab) formulae. Initial L*a*b* coordinates, ΔE00, and ΔEab data were analyzed with t-tests separately for each ceramic shade. White background led to higher values of L* and b* coordinates from the enamel shade, and of L*, a*, and b* coordinates from the dentin shade. However, ΔE00 and ΔEab results from white and gray backgrounds were similar in both ceramic shades. Therefore, background color did not affect the color difference results of the slightly stained feldspathic ceramic samples. |
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Colorimetric analysis of dental porcelains: effects of the background colorCIEL*a*b* systemColorDental ceramicThis study evaluated how the background (white or gray) affects the color parameter measurements and color difference calculations (∆Eab and ∆E00) of dental ceramics. Disc-shaped feldspathic ceramic specimens were prepared with two shades (enamel and dentin) and stained in red wine (7-day immersion). A spectrophotometer was used to perform color measurements (CIEL*a*b* coordinates) over gray and white backgrounds after the specimen preparation and after staining. The color difference was calculated with CIEDE2000 (ΔE00) and CIELAB (ΔEab) formulae. Initial L*a*b* coordinates, ΔE00, and ΔEab data were analyzed with t-tests separately for each ceramic shade. White background led to higher values of L* and b* coordinates from the enamel shade, and of L*, a*, and b* coordinates from the dentin shade. However, ΔE00 and ΔEab results from white and gray backgrounds were similar in both ceramic shades. Therefore, background color did not affect the color difference results of the slightly stained feldspathic ceramic samples.São Paulo State University Institute of Science and Technology Department of Dental Materials and Prosthodontics, Av. Eng. Francisco José Longo 777, SPRio Grande do Sul Northwest University Graduate Program of Mathematical and Computational Modeling, Ijuí, RSFederal University of Santa Maria Department of Restorative Dentistry, Santa Maria, RSSão Paulo State University Institute of Science and Technology Department of Dental Materials and Prosthodontics, Av. Eng. Francisco José Longo 777, SPUniversidade Estadual Paulista (UNESP)Graduate Program of Mathematical and Computational ModelingFederal University of Santa MariaRodrigues, C. S. [UNESP]Lenz, J. M.May, L. G.Jacques, L. B.2022-04-28T19:52:52Z2022-04-28T19:52:52Z2022-01-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article108-113http://dx.doi.org/10.1590/0366-69132022683853190Ceramica, v. 68, n. 385, p. 108-113, 2022.1678-45530366-6913http://hdl.handle.net/11449/22375010.1590/0366-691320226838531902-s2.0-85127470639Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengCeramicainfo:eu-repo/semantics/openAccess2022-04-28T19:52:52Zoai:repositorio.unesp.br:11449/223750Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T19:56:54.698804Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Colorimetric analysis of dental porcelains: effects of the background color |
title |
Colorimetric analysis of dental porcelains: effects of the background color |
spellingShingle |
Colorimetric analysis of dental porcelains: effects of the background color Rodrigues, C. S. [UNESP] CIEL*a*b* system Color Dental ceramic |
title_short |
Colorimetric analysis of dental porcelains: effects of the background color |
title_full |
Colorimetric analysis of dental porcelains: effects of the background color |
title_fullStr |
Colorimetric analysis of dental porcelains: effects of the background color |
title_full_unstemmed |
Colorimetric analysis of dental porcelains: effects of the background color |
title_sort |
Colorimetric analysis of dental porcelains: effects of the background color |
author |
Rodrigues, C. S. [UNESP] |
author_facet |
Rodrigues, C. S. [UNESP] Lenz, J. M. May, L. G. Jacques, L. B. |
author_role |
author |
author2 |
Lenz, J. M. May, L. G. Jacques, L. B. |
author2_role |
author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Graduate Program of Mathematical and Computational Modeling Federal University of Santa Maria |
dc.contributor.author.fl_str_mv |
Rodrigues, C. S. [UNESP] Lenz, J. M. May, L. G. Jacques, L. B. |
dc.subject.por.fl_str_mv |
CIEL*a*b* system Color Dental ceramic |
topic |
CIEL*a*b* system Color Dental ceramic |
description |
This study evaluated how the background (white or gray) affects the color parameter measurements and color difference calculations (∆Eab and ∆E00) of dental ceramics. Disc-shaped feldspathic ceramic specimens were prepared with two shades (enamel and dentin) and stained in red wine (7-day immersion). A spectrophotometer was used to perform color measurements (CIEL*a*b* coordinates) over gray and white backgrounds after the specimen preparation and after staining. The color difference was calculated with CIEDE2000 (ΔE00) and CIELAB (ΔEab) formulae. Initial L*a*b* coordinates, ΔE00, and ΔEab data were analyzed with t-tests separately for each ceramic shade. White background led to higher values of L* and b* coordinates from the enamel shade, and of L*, a*, and b* coordinates from the dentin shade. However, ΔE00 and ΔEab results from white and gray backgrounds were similar in both ceramic shades. Therefore, background color did not affect the color difference results of the slightly stained feldspathic ceramic samples. |
publishDate |
2022 |
dc.date.none.fl_str_mv |
2022-04-28T19:52:52Z 2022-04-28T19:52:52Z 2022-01-01 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/0366-69132022683853190 Ceramica, v. 68, n. 385, p. 108-113, 2022. 1678-4553 0366-6913 http://hdl.handle.net/11449/223750 10.1590/0366-69132022683853190 2-s2.0-85127470639 |
url |
http://dx.doi.org/10.1590/0366-69132022683853190 http://hdl.handle.net/11449/223750 |
identifier_str_mv |
Ceramica, v. 68, n. 385, p. 108-113, 2022. 1678-4553 0366-6913 10.1590/0366-69132022683853190 2-s2.0-85127470639 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Ceramica |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
108-113 |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1808129141734637568 |