Decomposition Rate, pH, and Enamel Color Alteration of At-Home and In-Office Bleaching Agents

Decomposition Rate, pH, and Enamel Color Alteration of At-Home and In-Office Bleaching Agents

Abstract This study evaluated the decomposition rate (DR), pH, enamel color alteration (DE) and whiteness index (DWI) promoted by at-home and in-office bleaching. Enamel surface was submitted to (n=10): at-home (10%, 15%, 20% carbamide peroxide - CP, 6% hydrogen peroxide -HP) and three 35% HP agents...

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Veröffentlicht in:Brazilian dental journal 2019-07, Vol.30 (4), p.385-396
Hauptverfasser: Cavalli, Vanessa, Silva, Bruna Guerra da, Berger, Sandrine Bittencourt, Marson, Fabiano Carlos, Tabchoury, Cinthia Pereira Machado, Giannini, Marcelo
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container_end_page 396
container_issue 4
container_start_page 385
container_title Brazilian dental journal
container_volume 30
creator Cavalli, Vanessa
Silva, Bruna Guerra da
Berger, Sandrine Bittencourt
Marson, Fabiano Carlos
Tabchoury, Cinthia Pereira Machado
Giannini, Marcelo
description Abstract This study evaluated the decomposition rate (DR), pH, enamel color alteration (DE) and whiteness index (DWI) promoted by at-home and in-office bleaching. Enamel surface was submitted to (n=10): at-home (10%, 15%, 20% carbamide peroxide - CP, 6% hydrogen peroxide -HP) and three 35% HP agents with light irradiation (LED, laser, and halogen) or no treatment (control). The DR and pH of agents were measured after 0, 2, 4, 6 and 8 h (at-home) or after 5, 15, 20, 30 and 40 min (in-office). Color parameters (L*, a*, b*, DE, DWI) were determined at baseline and after bleaching. DR, pH, L*, a*, b* data were analyzed by one-way (at-home) or two-way (in-office) repeated measures ANOVA and Tukey test. DE and DWI, by one-way (at-home) or two-way (in-office) ANOVA and Tukey test. DR of at-home agents was similar after 6 and 8 h (p>0.05), with pH close to neutral (6.5 to 6.9, CP) or acid 5.9 (6% HP). From 4 to 8 h, DE was higher for 15% and 20% CP compared with 10% CP (p0.05), com pH próximo ao neutro (6,5 a 6,9 - CP) ou ácido (5,9- HP 6%). De 4 a 8 h, a ∆E foi mai
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Enamel surface was submitted to (n=10): at-home (10%, 15%, 20% carbamide peroxide - CP, 6% hydrogen peroxide -HP) and three 35% HP agents with light irradiation (LED, laser, and halogen) or no treatment (control). The DR and pH of agents were measured after 0, 2, 4, 6 and 8 h (at-home) or after 5, 15, 20, 30 and 40 min (in-office). Color parameters (L*, a*, b*, DE, DWI) were determined at baseline and after bleaching. DR, pH, L*, a*, b* data were analyzed by one-way (at-home) or two-way (in-office) repeated measures ANOVA and Tukey test. DE and DWI, by one-way (at-home) or two-way (in-office) ANOVA and Tukey test. DR of at-home agents was similar after 6 and 8 h (p>0.05), with pH close to neutral (6.5 to 6.9, CP) or acid 5.9 (6% HP). From 4 to 8 h, DE was higher for 15% and 20% CP compared with 10% CP (p<0.05). After 40 min, DR of 35% HP agents was similar and all exhibited significant DE in one application (p<0.05), regardless light irradiation. DWI indicated whitening effect with no differences among groups (p>0.05). One 35% HP showed alkaline pH, and the others, pH < 5.5. At-home agents could be applied for 2 h (15%, 20% CP, 6% HP) and 4 h (10% CP) and the in-office agents, up to 40 min in one application, without light. Resumo Este estudo avaliou a taxa de decomposição (DR), pH, alteração da cor do esmalte (∆E) e índice de clareamento (DWI) promovido por agentes clareadores caseiros e de consultório. A superfície do esmalte foi submetida a (n=10): agentes caseiros (10%, 15%, 20% de peróxido de carbamida - CP e 6% de peróxido de hidrogênio - HP) e três agentes a base de HP a 35% comirradiação por luz (LED, laser e halógena) ou sem tratamento (controle). A DR e pH dos agentes foi mensurada após 0, 2, 4, 6 e 8h (agentes caseiros) e após 5, 15, 20, 30 e 40 min (agentes de consultório). Parâmetros de cor (L*, a*, b*, DE e DWI) foram determinados inicialmente e após clareamento. Os dados da DR, pH, L*, a*, b* foram analisados por ANOVA um fator (agentes caseiros) ou dois fatores (agentes de consultório) de medidas repetidas e teste Tukey. ΔE e DWI por ANOVA um fator (agentes caseiros) e dois fatores (agentes de consultório) e teste Tukey. A DR dos agentes clareadores caseiros foi similar após 6 e 8 h (p>0.05), com pH próximo ao neutro (6,5 a 6,9 - CP) ou ácido (5,9- HP 6%). De 4 a 8 h, a ∆E foi maior para CP 15% e 20% comparado ao CP 10% (p<0.05). Após 40 min, a DR dos agentes HP 35% foi similar e todos exibiram ∆E significante em uma aplicação (p<0.05), independente da aplicação de luz. DWI indicou efeito clareador, sem diferenças entre os grupos (p>0.05). Um agente HP 35% exibiu pH alcalino, e os outros, pH<5.5. Os agentes clareadores caseiros poderiam ser aplicados por 2 h (15%, 20% CP e 6% HP) e 4 h (CP 10%), e os agentes clareadores de consultório, até 40 min em uma aplicação, sem luz.]]></description><identifier>ISSN: 0103-6440</identifier><identifier>EISSN: 1806-4760</identifier><identifier>DOI: 10.1590/0103-6440201902484</identifier><language>eng</language><ispartof>Brazilian dental journal, 2019-07, Vol.30 (4), p.385-396</ispartof><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c2784-b3ed1caea767606a6e5ce633e82a98c1d63c83e82b6bdfe96f8808d44146d4813</citedby><cites>FETCH-LOGICAL-c2784-b3ed1caea767606a6e5ce633e82a98c1d63c83e82b6bdfe96f8808d44146d4813</cites><orcidid>0000-0002-7660-5685 ; 0000-0002-0471-6511 ; 0000-0002-7915-3207 ; 0000-0003-0443-0115 ; 0000-0002-2690-6906 ; 0000-0002-9459-1926</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>Cavalli, Vanessa</creatorcontrib><creatorcontrib>Silva, Bruna Guerra da</creatorcontrib><creatorcontrib>Berger, Sandrine Bittencourt</creatorcontrib><creatorcontrib>Marson, Fabiano Carlos</creatorcontrib><creatorcontrib>Tabchoury, Cinthia Pereira Machado</creatorcontrib><creatorcontrib>Giannini, Marcelo</creatorcontrib><title>Decomposition Rate, pH, and Enamel Color Alteration of At-Home and In-Office Bleaching Agents</title><title>Brazilian dental journal</title><description><![CDATA[Abstract This study evaluated the decomposition rate (DR), pH, enamel color alteration (DE) and whiteness index (DWI) promoted by at-home and in-office bleaching. Enamel surface was submitted to (n=10): at-home (10%, 15%, 20% carbamide peroxide - CP, 6% hydrogen peroxide -HP) and three 35% HP agents with light irradiation (LED, laser, and halogen) or no treatment (control). The DR and pH of agents were measured after 0, 2, 4, 6 and 8 h (at-home) or after 5, 15, 20, 30 and 40 min (in-office). Color parameters (L*, a*, b*, DE, DWI) were determined at baseline and after bleaching. DR, pH, L*, a*, b* data were analyzed by one-way (at-home) or two-way (in-office) repeated measures ANOVA and Tukey test. DE and DWI, by one-way (at-home) or two-way (in-office) ANOVA and Tukey test. DR of at-home agents was similar after 6 and 8 h (p>0.05), with pH close to neutral (6.5 to 6.9, CP) or acid 5.9 (6% HP). From 4 to 8 h, DE was higher for 15% and 20% CP compared with 10% CP (p<0.05). After 40 min, DR of 35% HP agents was similar and all exhibited significant DE in one application (p<0.05), regardless light irradiation. DWI indicated whitening effect with no differences among groups (p>0.05). One 35% HP showed alkaline pH, and the others, pH < 5.5. At-home agents could be applied for 2 h (15%, 20% CP, 6% HP) and 4 h (10% CP) and the in-office agents, up to 40 min in one application, without light. Resumo Este estudo avaliou a taxa de decomposição (DR), pH, alteração da cor do esmalte (∆E) e índice de clareamento (DWI) promovido por agentes clareadores caseiros e de consultório. A superfície do esmalte foi submetida a (n=10): agentes caseiros (10%, 15%, 20% de peróxido de carbamida - CP e 6% de peróxido de hidrogênio - HP) e três agentes a base de HP a 35% comirradiação por luz (LED, laser e halógena) ou sem tratamento (controle). A DR e pH dos agentes foi mensurada após 0, 2, 4, 6 e 8h (agentes caseiros) e após 5, 15, 20, 30 e 40 min (agentes de consultório). Parâmetros de cor (L*, a*, b*, DE e DWI) foram determinados inicialmente e após clareamento. Os dados da DR, pH, L*, a*, b* foram analisados por ANOVA um fator (agentes caseiros) ou dois fatores (agentes de consultório) de medidas repetidas e teste Tukey. ΔE e DWI por ANOVA um fator (agentes caseiros) e dois fatores (agentes de consultório) e teste Tukey. A DR dos agentes clareadores caseiros foi similar após 6 e 8 h (p>0.05), com pH próximo ao neutro (6,5 a 6,9 - CP) ou ácido (5,9- HP 6%). De 4 a 8 h, a ∆E foi maior para CP 15% e 20% comparado ao CP 10% (p<0.05). Após 40 min, a DR dos agentes HP 35% foi similar e todos exibiram ∆E significante em uma aplicação (p<0.05), independente da aplicação de luz. DWI indicou efeito clareador, sem diferenças entre os grupos (p>0.05). Um agente HP 35% exibiu pH alcalino, e os outros, pH<5.5. Os agentes clareadores caseiros poderiam ser aplicados por 2 h (15%, 20% CP e 6% HP) e 4 h (CP 10%), e os agentes clareadores de consultório, até 40 min em uma aplicação, sem luz.]]></description><issn>0103-6440</issn><issn>1806-4760</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNpVkFFLwzAcxIMoWKdfwKd8gEWTJkvTxzqnHQwGoo9S0uSfWWmTkvTFb-86RfDpOPhx3B1Ct4zesVVJ7ymjnEghaE5ZSXOhxBnKmKKSiELSc5T9AZfoKqVPegQFLzP0_ggmDGNI3dQFj1_0BEs81kusvcUbrwfo8Tr0IeKqnyDqExUcriZShwFO2NaTvXOdAfzQgzYfnT_g6gB-Stfowuk-wc2vLtDb0-Z1XZPd_nm7rnbE5IUSpOVgmdGgC3lsK7WElQHJOahcl8owK7lRs2tlax2U0ilFlRWCCWmFYnyB8p9cE0NKEVwzxm7Q8athtJkPaub9zb-D-DdYk1ct</recordid><startdate>20190722</startdate><enddate>20190722</enddate><creator>Cavalli, Vanessa</creator><creator>Silva, Bruna Guerra da</creator><creator>Berger, Sandrine Bittencourt</creator><creator>Marson, Fabiano Carlos</creator><creator>Tabchoury, Cinthia Pereira Machado</creator><creator>Giannini, Marcelo</creator><scope>AAYXX</scope><scope>CITATION</scope><orcidid>https://orcid.org/0000-0002-7660-5685</orcidid><orcidid>https://orcid.org/0000-0002-0471-6511</orcidid><orcidid>https://orcid.org/0000-0002-7915-3207</orcidid><orcidid>https://orcid.org/0000-0003-0443-0115</orcidid><orcidid>https://orcid.org/0000-0002-2690-6906</orcidid><orcidid>https://orcid.org/0000-0002-9459-1926</orcidid></search><sort><creationdate>20190722</creationdate><title>Decomposition Rate, pH, and Enamel Color Alteration of At-Home and In-Office Bleaching Agents</title><author>Cavalli, Vanessa ; Silva, Bruna Guerra da ; Berger, Sandrine Bittencourt ; Marson, Fabiano Carlos ; Tabchoury, Cinthia Pereira Machado ; Giannini, Marcelo</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c2784-b3ed1caea767606a6e5ce633e82a98c1d63c83e82b6bdfe96f8808d44146d4813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Cavalli, Vanessa</creatorcontrib><creatorcontrib>Silva, Bruna Guerra da</creatorcontrib><creatorcontrib>Berger, Sandrine Bittencourt</creatorcontrib><creatorcontrib>Marson, Fabiano Carlos</creatorcontrib><creatorcontrib>Tabchoury, Cinthia Pereira Machado</creatorcontrib><creatorcontrib>Giannini, Marcelo</creatorcontrib><collection>CrossRef</collection><jtitle>Brazilian dental journal</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Cavalli, Vanessa</au><au>Silva, Bruna Guerra da</au><au>Berger, Sandrine Bittencourt</au><au>Marson, Fabiano Carlos</au><au>Tabchoury, Cinthia Pereira Machado</au><au>Giannini, Marcelo</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Decomposition Rate, pH, and Enamel Color Alteration of At-Home and In-Office Bleaching Agents</atitle><jtitle>Brazilian dental journal</jtitle><date>2019-07-22</date><risdate>2019</risdate><volume>30</volume><issue>4</issue><spage>385</spage><epage>396</epage><pages>385-396</pages><issn>0103-6440</issn><eissn>1806-4760</eissn><abstract><![CDATA[Abstract This study evaluated the decomposition rate (DR), pH, enamel color alteration (DE) and whiteness index (DWI) promoted by at-home and in-office bleaching. Enamel surface was submitted to (n=10): at-home (10%, 15%, 20% carbamide peroxide - CP, 6% hydrogen peroxide -HP) and three 35% HP agents with light irradiation (LED, laser, and halogen) or no treatment (control). The DR and pH of agents were measured after 0, 2, 4, 6 and 8 h (at-home) or after 5, 15, 20, 30 and 40 min (in-office). Color parameters (L*, a*, b*, DE, DWI) were determined at baseline and after bleaching. DR, pH, L*, a*, b* data were analyzed by one-way (at-home) or two-way (in-office) repeated measures ANOVA and Tukey test. DE and DWI, by one-way (at-home) or two-way (in-office) ANOVA and Tukey test. DR of at-home agents was similar after 6 and 8 h (p>0.05), with pH close to neutral (6.5 to 6.9, CP) or acid 5.9 (6% HP). From 4 to 8 h, DE was higher for 15% and 20% CP compared with 10% CP (p<0.05). After 40 min, DR of 35% HP agents was similar and all exhibited significant DE in one application (p<0.05), regardless light irradiation. DWI indicated whitening effect with no differences among groups (p>0.05). One 35% HP showed alkaline pH, and the others, pH < 5.5. At-home agents could be applied for 2 h (15%, 20% CP, 6% HP) and 4 h (10% CP) and the in-office agents, up to 40 min in one application, without light. Resumo Este estudo avaliou a taxa de decomposição (DR), pH, alteração da cor do esmalte (∆E) e índice de clareamento (DWI) promovido por agentes clareadores caseiros e de consultório. A superfície do esmalte foi submetida a (n=10): agentes caseiros (10%, 15%, 20% de peróxido de carbamida - CP e 6% de peróxido de hidrogênio - HP) e três agentes a base de HP a 35% comirradiação por luz (LED, laser e halógena) ou sem tratamento (controle). A DR e pH dos agentes foi mensurada após 0, 2, 4, 6 e 8h (agentes caseiros) e após 5, 15, 20, 30 e 40 min (agentes de consultório). Parâmetros de cor (L*, a*, b*, DE e DWI) foram determinados inicialmente e após clareamento. Os dados da DR, pH, L*, a*, b* foram analisados por ANOVA um fator (agentes caseiros) ou dois fatores (agentes de consultório) de medidas repetidas e teste Tukey. ΔE e DWI por ANOVA um fator (agentes caseiros) e dois fatores (agentes de consultório) e teste Tukey. A DR dos agentes clareadores caseiros foi similar após 6 e 8 h (p>0.05), com pH próximo ao neutro (6,5 a 6,9 - CP) ou ácido (5,9- HP 6%). De 4 a 8 h, a ∆E foi maior para CP 15% e 20% comparado ao CP 10% (p<0.05). Após 40 min, a DR dos agentes HP 35% foi similar e todos exibiram ∆E significante em uma aplicação (p<0.05), independente da aplicação de luz. DWI indicou efeito clareador, sem diferenças entre os grupos (p>0.05). Um agente HP 35% exibiu pH alcalino, e os outros, pH<5.5. Os agentes clareadores caseiros poderiam ser aplicados por 2 h (15%, 20% CP e 6% HP) e 4 h (CP 10%), e os agentes clareadores de consultório, até 40 min em uma aplicação, sem luz.]]></abstract><doi>10.1590/0103-6440201902484</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-7660-5685</orcidid><orcidid>https://orcid.org/0000-0002-0471-6511</orcidid><orcidid>https://orcid.org/0000-0002-7915-3207</orcidid><orcidid>https://orcid.org/0000-0003-0443-0115</orcidid><orcidid>https://orcid.org/0000-0002-2690-6906</orcidid><orcidid>https://orcid.org/0000-0002-9459-1926</orcidid><oa>free_for_read</oa></addata></record>
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title Decomposition Rate, pH, and Enamel Color Alteration of At-Home and In-Office Bleaching Agents
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