Alteration of dentin–enamel mechanical properties due to dental whitening treatments

Zimmerman, Brandon; Datko, L.; Cupelli, Matthew; Alapati, Satish B.; Dean, Delphine; Kennedy, Marian S.

doi:10.1016/j.jmbbm.2010.01.005

Cited by 41 publications

(33 citation statements)

References 31 publications

(42 reference statements)

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“…Research indicates that the loss or denaturation of enamel proteins causes increased surface roughness (ZIMMERMAN et al, 2010). This coupled with other factors, such as: enamel composition, water absorption rate, permeability changes and irregularities on the enamel after the dental bleaching procedure may be responsible for the recurrence of extrinsic staining (HEGEDUS et al, 1999.…”

Section: Discussionmentioning

confidence: 99%

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Influence of solutions with pigmentation potential on tooth color after bleaching using 22% carbamide peroxide

Correia¹,

Melo²,

Cedraz³

et al. 2017

Biosci. J.

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ABSTRACT:The color stability achieved by dental bleaching can be affected by exposure to staining agents present in foods. However, there is scarce research regarding tooth staining during dental bleaching. This study investigated the effect of pigments on the color stability of dental elements during dental bleaching. Blocks obtained from bovine incisors were divided into seven groups (n = 10) in accordance with the staining pigments (distilled water -control; coffee, cola, tea, red wine, chocolate milk and soya sauce (Shoyu). The color was evaluated with a spectrophotometer (Minolta CR-321, Japan) before and after dental bleaching (1 st and 14 th days), employing the (CIE) L*a*b* system. The dental bleaching procedure was performed using 22% carbamide peroxide gel applied to the sample surface for a period of 1 hour each day, for 14 days. After dental bleaching, the teeth were exposed to 20 ml of staining solution for 5 minutes, at 37ºC and 100 rpm for different periods. During the experiment, the samples were stored in distilled water. Data was analyzed using ANOVA followed by Tukey tests, with a significance level of 5%. Significant differences for ∆E* values (p<0.05) were observed between the groups. The Shoyu group presented a decrease in luminosity (negative value of ∆L*). It could be concluded that all solutions contained pigments that promoted staining on the surface. However, bleached enamel was susceptible to staining with soya sauce (Shoyu), while other substances did not interfere with the dental bleaching.

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Section: Discussionmentioning

confidence: 99%

“…LIA MONDELLI et al, 2015DE ABREU et al, 2011). These changes may be partly due to the loss or denaturing of protein (ZIMMERMAN et al, 2010) and facilitate the recurrence of extrinsic staining ( JOINER, 2004. NATHOO, 1997 (KARADAS;SEVEN, 2014.…”

Section: Introductionmentioning

confidence: 99%

Influence of solutions with pigmentation potential on tooth color after bleaching using 22% carbamide peroxide

Correia¹,

Melo²,

Cedraz³

et al. 2017

Biosci. J.

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“…Histochemical and morphological alterations to enamel and dentin , changes in the biomechanical properties of human dentin (i.e. ultimate tensile strength, micropunch shear strength, and microhardness) , and alterations in the organic component of dentin have been consistently described. Despite the fact that these were considered, in general, to be minor and not clinically relevant , in 2013, Sato and co‐workers demonstrated that a bleaching agent containing 35% hydrogen peroxide induces a significant in vivo alteration both in enamel and dentin, which could potentially trigger biological and/or mechanical responses in dental structures.…”

Section: Dentin Management: Chemical Treatments Altering the Integritmentioning

confidence: 97%

“…Hydrogen peroxide is a powerful oxidant and several studies have reported microstructural alterations in dental hard tissues induced by bleaching . Histochemical and morphological alterations to enamel and dentin , changes in the biomechanical properties of human dentin (i.e. ultimate tensile strength, micropunch shear strength, and microhardness) , and alterations in the organic component of dentin have been consistently described.…”

Section: Dentin Management: Chemical Treatments Altering the Integritmentioning

confidence: 99%

Chemical, microbial, and host‐related factors: effects on the integrity of dentin and the dentin–biomaterial interface

Carrilho¹,

Piveta²,

Tjäderhane³

2015

Endodontic Topics

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Dentin is the largest substrate available whenever restorative procedures are implemented on the exposed crown or root of teeth. In endodontics, restorative/obturating procedures are practically restricted to dentin. It is well recognized that the incidence of fracture in endodontically treated teeth is intrinsically related to the amount of remaining dentin. Ideally, it is expected that a gap‐free, solid interface can be formed between the restorative/obturating materials and root dentin, providing an impervious seal and, simultaneously, fracture resistance to root‐filled teeth. Over the past years, a number of new obturating biomaterials have been launched in the market, bringing to endodontists the expectation of achieving consistent sealing/reinforcing of the root canal system. However, the successful sealing of root dentin remains one of the greatest challenges in restorative dentistry. This article will focus on reviewing some factors that affect the formation and integrity of dentin–biomaterial interfaces from the perspective of the dentin substrate. Because other articles in preceding issues of Endodontic Topics have already covered dentin structure and composition, the objective here is not to review these aspects. Specific attention is given, however, to depicting how chemical treatments affect existing root filling/restorative mechanisms and how some microbial and host‐related aspects can compromise the interaction of dentin with new biomaterials.

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“…The reduction in bond strength has been attributed to the presence of residual oxygen within the tooth structure [5,7] preventing polymerization of the adhesive monomers, alteration in mineral and protein content [8,9] and the capacity of the bleaching agent to influence the formation of resin tags, structures responsible for micromechanical bond of resin composites to tooth structure. When the bond technique is performed immediately after conclusion of the dental bleaching session, the absence of tags or formation of shorter tags has been observed [10,11].…”

Section: Introductionmentioning

confidence: 99%

Efeito do ascorbato de sódio na adesividade da resina composta em dentes clareados

Xavier

Gomes

Silva

et al. 2015

Rev. Odonto Ciênc. (Online)

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Objective: The objective of this study was to evaluate the effect of sodium ascorbate on resin composite bond strength. Methods: Forty human premolars were used, which were divided into 4 groups: C -(control) unbleached teeth submitted to a restorative procedure; S -teeth bleached with 35% hydrogen peroxide and stored in artificial saliva for 48 hours; AS -teeth bleached with 35% hydrogen peroxide and irrigated with a 10% sodium ascorbate solution for 10 minutes; AG -teeth bleached with 35% hydrogen peroxide and immersed in 10% sodium ascorbate for 3 hours. After restoration, the samples were section and microtensile bond strength tests were performed in a universal test machine (Emic) at a speed of 1mm/min. The data were evaluated and submitted to the ANOVA and Tukey statistical tests (5% significance level).Results: Group C presented the highest bond strength value, differing statistically from Groups S and AG, however, without statistical difference in comparison with Group AS. Conclusion: Keeping teeth that have been bleached with 35% hydrogen peroxide in saliva for 48 hours is insufficient to recover bond strength. However, the use of 10% sodium ascorbate for 10 minutes may promote adequate bond strength, allowing immediate restoration of the teeth.Key words: Tooth Bleaching; Hydrogen peroxide; Bond strength.Efeito do ascorbato de sódio na adesividade da resina composta em dentes clareados Resumo Objetivo: Avaliar o efeito do ascorbato de sódio na adesão de resina composta em dentes submetidos a tratamento clareador. Métodos: Foram utilizados 40 pré-molares humanos, divididos em 4 grupos: C -(controle) dentes não clareados; S -dentes clareados com peróxido de hidrogênio 35% e armazenados por 48 horas em saliva artificial; AS -dentes clareados com peróxido de hidrogênio 35% e irrigados com solução de ascorbato de sódio 10% por 10 minutos; AG -dentes submetidos a tratamento clareador com peróxido de hidrogênio 35% e imersos em gel de ascorbato de sódio 10% por 3 horas. Após a restauração, as amostras foram seccionadas e submetidas ao teste de microtração em máquina de ensaios universais (Emic) sob velocidade de 1 mm/min. Os dados foram avaliados e submetidos aos testes estatísticos ANOVA e Tukey, com nível de significância 5%. Resultados: O grupo C apresentou o maior valor de adesividade, diferindo estatisticamente dos grupos S e AG. Conclusão: A manutenção dos dentes clareados em saliva por 48 horas não é suficiente para a recuperação da resistência adesiva. No entanto, a utilização da solução de ascorbato de sódio 10% por 10 minutos pode promover uma resistência adesiva adequada, permitindo a imediata restauração dos dentes.Palavras-chave: Clareamento dental; Peróxido de hidrogênio; Resistência de união. 111Rev Odonto Cienc 2014;29(4):110-113 Effect of sodium ascorbate on bond strength of bleached teeth | Xavier et al.

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Alteration of dentin–enamel mechanical properties due to dental whitening treatments

Cited by 41 publications

References 31 publications

Influence of solutions with pigmentation potential on tooth color after bleaching using 22% carbamide peroxide

Influence of solutions with pigmentation potential on tooth color after bleaching using 22% carbamide peroxide

Chemical, microbial, and host‐related factors: effects on the integrity of dentin and the dentin–biomaterial interface

Efeito do ascorbato de sódio na adesividade da resina composta em dentes clareados

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