Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/j.prosdent.2016.10.023 http://hdl.handle.net/11449/178649 |
Resumo: | Statement of problem The stability of the optical characteristics of dental ceramics is essential. Degradation of these materials resulting from pH or temperature alterations in the oral cavity can lead to treatment failure. Purpose The purpose of this in vitro study was to evaluate the color change (ΔE), the L* coordinate, the translucency parameter, and the contrast ratio of lithium disilicate ceramic exposed to commonly used and potentially colorant solutions. Material and methods Fifty lithium disilicate specimens were prepared and divided into 5 groups according to the immersion solution (artificial saliva, orange juice, cola, coffee, and red wine). Immersions in acidic beverages were alternated in a thermocycler with artificial saliva. The control group was immersed in artificial saliva at 37°C throughout the immersion period. After 168 hours of immersion, the color parameters were assessed with a spectrophotometer and calculated using the because system on 2 backgrounds (black and white) and in 2 time periods, before thermocycling and after thermocycling. Data were submitted to analysis of variance followed by the Tukey honest significant difference test (α=.05). Results Greater color change (ΔE) and lower L* coordinate values were observed after immersion in orange juice and cola. Regarding the translucency parameter and contrast ratio, the immersion in coffee resulted in greater opacity and lower translucency of the material. Conclusions Alterations in the color stainability, the L* coordinate values, the translucency parameter, and the contrast ratio of the lithium disilicate ceramic were observed, according to the acidic solutions tested. |
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Effect of different acidic solutions on the optical behavior of lithium disilicate ceramicsStatement of problem The stability of the optical characteristics of dental ceramics is essential. Degradation of these materials resulting from pH or temperature alterations in the oral cavity can lead to treatment failure. Purpose The purpose of this in vitro study was to evaluate the color change (ΔE), the L* coordinate, the translucency parameter, and the contrast ratio of lithium disilicate ceramic exposed to commonly used and potentially colorant solutions. Material and methods Fifty lithium disilicate specimens were prepared and divided into 5 groups according to the immersion solution (artificial saliva, orange juice, cola, coffee, and red wine). Immersions in acidic beverages were alternated in a thermocycler with artificial saliva. The control group was immersed in artificial saliva at 37°C throughout the immersion period. After 168 hours of immersion, the color parameters were assessed with a spectrophotometer and calculated using the because system on 2 backgrounds (black and white) and in 2 time periods, before thermocycling and after thermocycling. Data were submitted to analysis of variance followed by the Tukey honest significant difference test (α=.05). Results Greater color change (ΔE) and lower L* coordinate values were observed after immersion in orange juice and cola. Regarding the translucency parameter and contrast ratio, the immersion in coffee resulted in greater opacity and lower translucency of the material. Conclusions Alterations in the color stainability, the L* coordinate values, the translucency parameter, and the contrast ratio of the lithium disilicate ceramic were observed, according to the acidic solutions tested.Professor Department of Dental Materials and Prosthodontics Sao Paulo State University (UNESP) School of DentistryPostgraduate student Department of Dental Materials and Prosthodontics Sao Paulo State University (UNESP) School of DentistryGraduate student Department of Dental Materials and Prosthodontics Sao Paulo State University (UNESP) School of DentistryProfessor Department of Dental Materials and Prosthodontics Sao Paulo State University (UNESP) School of DentistryPostgraduate student Department of Dental Materials and Prosthodontics Sao Paulo State University (UNESP) School of DentistryGraduate student Department of Dental Materials and Prosthodontics Sao Paulo State University (UNESP) School of DentistryUniversidade Estadual Paulista (Unesp)dos Santos, Daniela Micheline [UNESP]da Silva, Emily Vivianne Freitas [UNESP]Watanabe, Denis [UNESP]Bitencourt, Sandro Basso [UNESP]Guiotti, Aimée Maria [UNESP]Goiato, Marcelo Coelho [UNESP]2018-12-11T17:31:29Z2018-12-11T17:31:29Z2017-09-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article430-436application/pdfhttp://dx.doi.org/10.1016/j.prosdent.2016.10.023Journal of Prosthetic Dentistry, v. 118, n. 3, p. 430-436, 2017.0022-3913http://hdl.handle.net/11449/17864910.1016/j.prosdent.2016.10.0232-s2.0-850130541002-s2.0-85013054100.pdf9719883814872582Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Prosthetic Dentistry1,087info:eu-repo/semantics/openAccess2024-09-19T14:51:28Zoai:repositorio.unesp.br:11449/178649Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestrepositoriounesp@unesp.bropendoar:29462024-09-19T14:51:28Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics |
title |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics |
spellingShingle |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics dos Santos, Daniela Micheline [UNESP] |
title_short |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics |
title_full |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics |
title_fullStr |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics |
title_full_unstemmed |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics |
title_sort |
Effect of different acidic solutions on the optical behavior of lithium disilicate ceramics |
author |
dos Santos, Daniela Micheline [UNESP] |
author_facet |
dos Santos, Daniela Micheline [UNESP] da Silva, Emily Vivianne Freitas [UNESP] Watanabe, Denis [UNESP] Bitencourt, Sandro Basso [UNESP] Guiotti, Aimée Maria [UNESP] Goiato, Marcelo Coelho [UNESP] |
author_role |
author |
author2 |
da Silva, Emily Vivianne Freitas [UNESP] Watanabe, Denis [UNESP] Bitencourt, Sandro Basso [UNESP] Guiotti, Aimée Maria [UNESP] Goiato, Marcelo Coelho [UNESP] |
author2_role |
author author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
dos Santos, Daniela Micheline [UNESP] da Silva, Emily Vivianne Freitas [UNESP] Watanabe, Denis [UNESP] Bitencourt, Sandro Basso [UNESP] Guiotti, Aimée Maria [UNESP] Goiato, Marcelo Coelho [UNESP] |
description |
Statement of problem The stability of the optical characteristics of dental ceramics is essential. Degradation of these materials resulting from pH or temperature alterations in the oral cavity can lead to treatment failure. Purpose The purpose of this in vitro study was to evaluate the color change (ΔE), the L* coordinate, the translucency parameter, and the contrast ratio of lithium disilicate ceramic exposed to commonly used and potentially colorant solutions. Material and methods Fifty lithium disilicate specimens were prepared and divided into 5 groups according to the immersion solution (artificial saliva, orange juice, cola, coffee, and red wine). Immersions in acidic beverages were alternated in a thermocycler with artificial saliva. The control group was immersed in artificial saliva at 37°C throughout the immersion period. After 168 hours of immersion, the color parameters were assessed with a spectrophotometer and calculated using the because system on 2 backgrounds (black and white) and in 2 time periods, before thermocycling and after thermocycling. Data were submitted to analysis of variance followed by the Tukey honest significant difference test (α=.05). Results Greater color change (ΔE) and lower L* coordinate values were observed after immersion in orange juice and cola. Regarding the translucency parameter and contrast ratio, the immersion in coffee resulted in greater opacity and lower translucency of the material. Conclusions Alterations in the color stainability, the L* coordinate values, the translucency parameter, and the contrast ratio of the lithium disilicate ceramic were observed, according to the acidic solutions tested. |
publishDate |
2017 |
dc.date.none.fl_str_mv |
2017-09-01 2018-12-11T17:31:29Z 2018-12-11T17:31:29Z |
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/10.1016/j.prosdent.2016.10.023 Journal of Prosthetic Dentistry, v. 118, n. 3, p. 430-436, 2017. 0022-3913 http://hdl.handle.net/11449/178649 10.1016/j.prosdent.2016.10.023 2-s2.0-85013054100 2-s2.0-85013054100.pdf 9719883814872582 |
url |
http://dx.doi.org/10.1016/j.prosdent.2016.10.023 http://hdl.handle.net/11449/178649 |
identifier_str_mv |
Journal of Prosthetic Dentistry, v. 118, n. 3, p. 430-436, 2017. 0022-3913 10.1016/j.prosdent.2016.10.023 2-s2.0-85013054100 2-s2.0-85013054100.pdf 9719883814872582 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Prosthetic Dentistry 1,087 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
430-436 application/pdf |
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 |
repositoriounesp@unesp.br |
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1826304112491233280 |