Surface alteration of human tooth enamel subjected to acidic and neutral 30% hydrogen peroxide

Sun, Lili; Liang, Shanshan; Sa, Yue; Wang, Zhejun; Ma, Xiao; Jiang, Tao

doi:10.1016/j.jdent.2011.07.011

Cited by 124 publications

(129 citation statements)

References 35 publications

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“…11 It was found that acidic and neutral 30% HP solutions had the same whitening efficiency while acidic 30% HP solution caused more deleterious effects on enamel than the neutral one. This finding indicated that the enamel surface demineralisation might be mainly caused by the low pH rather than HP per se.…”

Section: Introductionmentioning

confidence: 97%

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Effects of two in-office bleaching agents with different pH values on enamel surface structure and color: An in situ vs. in vitro study

Chen

Liu

et al. 2012

Journal of Dentistry

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Section: Introductionmentioning

confidence: 97%

“…Nevertheless, the majority of them paid attention to the concentration, application modes or treating time of bleaching agents. 1,[8][9][10] Only a limited number of studies 11 focused on the pH values. It is known that the low pH could induce the demineralisation of enamel structure.…”

Section: Introductionmentioning

confidence: 99%

Effects of two in-office bleaching agents with different pH values on enamel surface structure and color: An in situ vs. in vitro study

Chen

Liu

et al. 2012

Journal of Dentistry

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“…For crowns and veneers, these treatment options entail a moderate loss of dental hard tissue. Vital tooth bleaching is not only a less costly alternative to bonded restorative dentistry, it is a conservative and non-invasive technique which has been well accepted to be safe and effective 2) . Tooth bleaching using oxalic acid was first introduced in 1848 3) , followed by hydrogen peroxide (HP) in 1884 4) .…”

Section: Introductionmentioning

confidence: 99%

Efficacy of cold light bleaching using different bleaching times and their effects on human enamel

Wang

Zhu

et al. 2013

Dent. Mater. J.

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This study investigated the efficacy of cold light bleaching using different bleaching times and the effects thereof on tooth enamel. Before and after bleaching, stained tooth specimens were subjected to visual and instrumental colorimetric assessments using Vita Shade Guide and spectrophotometric shade matching. Enamel surface alterations were examined using scanning electron microscopy (SEM) to analyze surface morphology, surface microhardness (SMH) measurement to determine changes in mechanical properties, and X-ray diffraction (XRD) to characterize post-bleaching enamel composition. Cold light bleaching successfully improved tooth color, with optimal efficacy when bleaching time was beyond 10 min. Significant differences in surface morphology were observed among the different bleaching times, but no significant differences were observed for enamel composition and surface microhardness among the different bleaching times. Results of this study revealed an association between the bleaching time of cold light bleaching and its whitening efficacy. Together with the results on enamel surface changes, this study provided positive evidence to support cold light bleaching as an in-office bleaching treatment.

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“…In this regard, some authors consider the pH of the product to be more important than HP concentration in conditioning the changes in morphology and roughness. [30][31][32][33] Regarding the concentration of the products, some authors have only described morphological changes or variations in the mineral component when using high concentration gels, [34][35][36] while others have recorded changes even with products at low concentrations. 37,38 In turn, some investigators have observed no changes when using HP at a concentration of 7.5% or CP at a concentration of 10 or 16%.…”

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confidence: 99%

Effect of Hydrogen and Carbamide Peroxide in Bleaching, Enamel Morphology, and Mineral Composition: In vitro Study

Llena

Esteve

Forner

2017

The Journal of Contemporary Dental Practice

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Aim:The aim of the study was to evaluate the bleaching effect, morphological changes, and variations in calcium (Ca) and phosphate (P) in the enamel with hydrogen peroxide (HP) and carbamide peroxide (CP) after the use of different application regimens. Materials and methods:Four groups of five teeth were randomly assigned, according to the treatment protocol: HP 37.5% applied for 30 or 60 minutes (HP30, HP60), CP 16% applied for 14 or 28 hours (CP14, CP28). Changes in dental color were evaluated, according to the following formula:. Enamel morphology and Ca and P compositions were evaluated by confocal laser scanning microscope and environmental scanning electron microscopy.Results: ΔE HP30 was significantly greater than CP14 (10.37 ± 2.65/8.56 ± 1.40), but not between HP60 and CP28. HP60 shows greater morphological changes than HP30. No morphological changes were observed in the groups treated with CP. The reduction in Ca and P was significantly greater in HP60 than in CP28 (p < 0.05). Conclusion:Both formulations improved tooth color; HP produced morphological changes and Ca and P a gradual decrease, while CP produced no morphological changes, and the decrease in mineral component was smaller.Clinical significance: CP 16% applied during 2 weeks could be equally effective and safer for tooth whitening than to administer two treatment sessions with HP 37.5%.

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Surface alteration of human tooth enamel subjected to acidic and neutral 30% hydrogen peroxide

Cited by 124 publications

References 35 publications

Effects of two in-office bleaching agents with different pH values on enamel surface structure and color: An in situ vs. in vitro study

Effects of two in-office bleaching agents with different pH values on enamel surface structure and color: An in situ vs. in vitro study

Efficacy of cold light bleaching using different bleaching times and their effects on human enamel

Effect of Hydrogen and Carbamide Peroxide in Bleaching, Enamel Morphology, and Mineral Composition: In vitro Study

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