Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins
Autor(a) principal: | |
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Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1016/S0022-3913(13)60387-X http://hdl.handle.net/11449/231360 |
Resumo: | Statement of problem: Intrinsic pigmentation is widely used to improve the esthetic features of denture base acrylic resins. However, acrylic resin may discolor over time. Purpose: The purpose of this study was to investigate the effect of intrinsic nanoparticle pigmentation on the color stability of acrylic resins. Material and methods: The acrylic resins, Onda Cryl, QC 20, Classico, and Lucitone, were evaluated. Twenty-one disk-shaped specimens (3 × 30 mm) were fabricated from each acrylic resin. Seven were colored with 3% Poli-Cor intrinsic pigment used to color denture base, 7 were colored with 7% pigment, and 7 were not pigmented. In addition, 7 specimens were fabricated containing only pigment. The specimens were thermally cycled 2000 times between 5°C and 55°C with a 30-second dwell time at each temperature. The specimen colors were measured with a spectrophotometer and evaluated with the CIE L*a*b* system before (B) and after thermal cycling (T). The pigment morphology was analyzed by using a scanning electron microscope (SEM) and energy-dispersive x-ray spectroscopy (EDS) techniques. The results were analyzed with 2-way nested ANOVA and Tukey HSD tests (α=.05). Results: Classico acrylic resin with and without pigment underwent the least color change, followed in order by Lucitone, Onda Cryl, and QC-20. The presence of pigments reduced the color change of the acrylic resins significantly (P<.05) for the specimens containing 7% pigment (0.32 ±0.18 ΔE). Titanium was the sole metallic component present in the pigment, probably in the oxide form (TiO2). Conclusions: Nanoparticle pigments enhanced the color stability of denture base acrylic resins. |
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Repositório Institucional da UNESP |
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2946 |
spelling |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resinsStatement of problem: Intrinsic pigmentation is widely used to improve the esthetic features of denture base acrylic resins. However, acrylic resin may discolor over time. Purpose: The purpose of this study was to investigate the effect of intrinsic nanoparticle pigmentation on the color stability of acrylic resins. Material and methods: The acrylic resins, Onda Cryl, QC 20, Classico, and Lucitone, were evaluated. Twenty-one disk-shaped specimens (3 × 30 mm) were fabricated from each acrylic resin. Seven were colored with 3% Poli-Cor intrinsic pigment used to color denture base, 7 were colored with 7% pigment, and 7 were not pigmented. In addition, 7 specimens were fabricated containing only pigment. The specimens were thermally cycled 2000 times between 5°C and 55°C with a 30-second dwell time at each temperature. The specimen colors were measured with a spectrophotometer and evaluated with the CIE L*a*b* system before (B) and after thermal cycling (T). The pigment morphology was analyzed by using a scanning electron microscope (SEM) and energy-dispersive x-ray spectroscopy (EDS) techniques. The results were analyzed with 2-way nested ANOVA and Tukey HSD tests (α=.05). Results: Classico acrylic resin with and without pigment underwent the least color change, followed in order by Lucitone, Onda Cryl, and QC-20. The presence of pigments reduced the color change of the acrylic resins significantly (P<.05) for the specimens containing 7% pigment (0.32 ±0.18 ΔE). Titanium was the sole metallic component present in the pigment, probably in the oxide form (TiO2). Conclusions: Nanoparticle pigments enhanced the color stability of denture base acrylic resins.Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Associate Professor Department of Dental Materials and Prosthodontics, State University of São Paulo-UNESP, Faculty of Dentistry of AraçatubaGraduate student Department of Dental Materials and Prosthodontics, State University of São Paulo-UNESP, Faculty of Dentistry of AraçatubaAssociate Professor Piracicaba Dental School, State University of CampinasFAPESP: 2009/15170-3Universidade Estadual Paulista (UNESP)Universidade Estadual de Campinas (UNICAMP)Goiato, Marcelo CoelhoZuccolotti, Bruna Carolina Rossattidos Santos, Daniela MichelineSinhoreti, Mário Alexandre CoelhoMoreno, Amália2022-04-29T08:44:57Z2022-04-29T08:44:57Z2013-08-01info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article101-106http://dx.doi.org/10.1016/S0022-3913(13)60387-XJournal of Prosthetic Dentistry, v. 110, n. 2, p. 101-106, 2013.1097-68410022-3913http://hdl.handle.net/11449/23136010.1016/S0022-3913(13)60387-X2-s2.0-84937217089Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengJournal of Prosthetic Dentistryinfo:eu-repo/semantics/openAccess2022-04-29T08:44:57Zoai:repositorio.unesp.br:11449/231360Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-08-05T16:58:57.381665Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins |
title |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins |
spellingShingle |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins Goiato, Marcelo Coelho |
title_short |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins |
title_full |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins |
title_fullStr |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins |
title_full_unstemmed |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins |
title_sort |
Effect of intrinsic nanoparticle pigmentation on the color stability of denture base acrylic resins |
author |
Goiato, Marcelo Coelho |
author_facet |
Goiato, Marcelo Coelho Zuccolotti, Bruna Carolina Rossatti dos Santos, Daniela Micheline Sinhoreti, Mário Alexandre Coelho Moreno, Amália |
author_role |
author |
author2 |
Zuccolotti, Bruna Carolina Rossatti dos Santos, Daniela Micheline Sinhoreti, Mário Alexandre Coelho Moreno, Amália |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (UNESP) Universidade Estadual de Campinas (UNICAMP) |
dc.contributor.author.fl_str_mv |
Goiato, Marcelo Coelho Zuccolotti, Bruna Carolina Rossatti dos Santos, Daniela Micheline Sinhoreti, Mário Alexandre Coelho Moreno, Amália |
description |
Statement of problem: Intrinsic pigmentation is widely used to improve the esthetic features of denture base acrylic resins. However, acrylic resin may discolor over time. Purpose: The purpose of this study was to investigate the effect of intrinsic nanoparticle pigmentation on the color stability of acrylic resins. Material and methods: The acrylic resins, Onda Cryl, QC 20, Classico, and Lucitone, were evaluated. Twenty-one disk-shaped specimens (3 × 30 mm) were fabricated from each acrylic resin. Seven were colored with 3% Poli-Cor intrinsic pigment used to color denture base, 7 were colored with 7% pigment, and 7 were not pigmented. In addition, 7 specimens were fabricated containing only pigment. The specimens were thermally cycled 2000 times between 5°C and 55°C with a 30-second dwell time at each temperature. The specimen colors were measured with a spectrophotometer and evaluated with the CIE L*a*b* system before (B) and after thermal cycling (T). The pigment morphology was analyzed by using a scanning electron microscope (SEM) and energy-dispersive x-ray spectroscopy (EDS) techniques. The results were analyzed with 2-way nested ANOVA and Tukey HSD tests (α=.05). Results: Classico acrylic resin with and without pigment underwent the least color change, followed in order by Lucitone, Onda Cryl, and QC-20. The presence of pigments reduced the color change of the acrylic resins significantly (P<.05) for the specimens containing 7% pigment (0.32 ±0.18 ΔE). Titanium was the sole metallic component present in the pigment, probably in the oxide form (TiO2). Conclusions: Nanoparticle pigments enhanced the color stability of denture base acrylic resins. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-08-01 2022-04-29T08:44:57Z 2022-04-29T08:44:57Z |
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/S0022-3913(13)60387-X Journal of Prosthetic Dentistry, v. 110, n. 2, p. 101-106, 2013. 1097-6841 0022-3913 http://hdl.handle.net/11449/231360 10.1016/S0022-3913(13)60387-X 2-s2.0-84937217089 |
url |
http://dx.doi.org/10.1016/S0022-3913(13)60387-X http://hdl.handle.net/11449/231360 |
identifier_str_mv |
Journal of Prosthetic Dentistry, v. 110, n. 2, p. 101-106, 2013. 1097-6841 0022-3913 10.1016/S0022-3913(13)60387-X 2-s2.0-84937217089 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Journal of Prosthetic Dentistry |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
101-106 |
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_ |
1808128729377931264 |