2016
DOI: 10.1590/1678-775720150281
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Influence of pH, bleaching agents, and acid etching on surface wear of bovine enamel

Abstract: Development of new materials for tooth bleaching justifies the need for studies to evaluate the changes in the enamel surface caused by different bleaching protocols. Objective The aim of this study was to evaluate the bovine dental enamel wear in function of different bleaching gel protocols, acid etching and pH variation.Material and Methods Sixty fragments of bovine teeth were cut, obtaining a control and test areas. In the test area, one half received etching followed by a bleaching gel application, and th… Show more

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Cited by 48 publications
(49 citation statements)
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“…This can directly affect the material's properties, leading to a significant reduction in bleaching effectiveness. Decreases in pH values can also change the chemical properties of the bleaching agents, which can induce greater mineral loss on the dental surface promoted by the elevation of the H + ion . Therefore, it is possible to hypothesize that the application of bleaching agents stored under unfavorable conditions produces a decrease in pH, which could induce greater pulp damage.…”
Section: Discussionmentioning
confidence: 99%
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“…This can directly affect the material's properties, leading to a significant reduction in bleaching effectiveness. Decreases in pH values can also change the chemical properties of the bleaching agents, which can induce greater mineral loss on the dental surface promoted by the elevation of the H + ion . Therefore, it is possible to hypothesize that the application of bleaching agents stored under unfavorable conditions produces a decrease in pH, which could induce greater pulp damage.…”
Section: Discussionmentioning
confidence: 99%
“…the bleaching agents, which can induce greater mineral loss on the dental surface promoted by the elevation of the H + ion. 11,21,22 Therefore, it is possible to hypothesize that the application of bleaching agents stored under unfavorable conditions produces a decrease in pH, which could induce greater pulp damage.…”
Section: Discussionmentioning
confidence: 99%
“…Esses achados poderiam explicar os resultados dessa pesquisa quando o G2, grupo em que as amostras foram submetidas ao clareamento por mais tempo, apresentou a maior rugosidade superficial dos dentes clareados 23,17 . Em nosso estudo foram utilizados produtos a base de peróxido de hidrogênio em concentrações semelhantes entre si, no entanto, foi observado que o Grupo 2 (G2), submetido ao uso do peróxido de hidrogênio a 7,5%, apresentou uma maior rugosidade superficial em relação aos demais grupos testados, com diferenças estatísticas significante.…”
Section: Discussionunclassified
“…Segundo Trentino et al 23 (2015), há uma queda no nível do pH durante o procedimento de clareamento dos principais géis, exceto, em produtos que contêm cálcio em sua composição. Soares et al 17 (2016) corroboraram com os achados nas mudanças de concentração do pH no antes e depois do procedimento clareador. Porém, afirmaram não haver uma correlação direta entre os valores de pH e mudanças na rugosidade superficial do esmalte.…”
Section: Discussionunclassified
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