Effect of Toothpaste Use Against Mineral Loss Promoted by Dental Bleaching

Vieira-Júnior, Waldemir Francisco; Ferraz, Laura Nobre; Pini, Núbia Inocêncya Pavesi; Ambrosano, Gláucia María Bovi; Aguiar, Flávio Henrique Baggio; Tabchoury, Cínthia Pereira Machado; Lima, Danl

doi:10.2341/17-024-tr

Cited by 41 publications

(54 citation statements)

References 35 publications

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“…The number of strokes was based on 1-month simulation of normal toothbrushing. 18 As both charcoal and CP's manufacturers stipulate 2 weeks of treatment, 412 cycles were performed for COAL, RT, and WT protocols. Previous reports have indicated that longer brushing cycles diminished the volume of the enamel surface, 24 and further studies could enlighten if the same is true for charcoal-based products.…”

Section: Discussionmentioning

confidence: 99%

“…The specimens of each treatment group were attached to a mechanical brushing machine (MSet, Nucci ME, São Carlos, SP, Brazil) with the enamel surface positioned upwards. Forty-hundred and twelve brushing cycles (824 strokes) were performed to simulate 14-day brushing with a frequency of 5 Hz and under a load of 200 g. 18 KCl, pH 7.0) at 37 C, 19 and the solution was renewed every 2 days.…”

Section: Brushing Protocolmentioning

confidence: 99%

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Effects of activated charcoal powder combined with toothpastes on enamel color change and surface properties

Palandi

Kury

Picolo

et al. 2020

J Esthet Restor Dent

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Aim: To evaluate the effects of activated charcoal powder (COAL) combined with regular (RT) or whitening (WT) toothpastes on enamel color and surface in comparison to carbamide peroxide (CP). Methods: Dental blocks (n = 10/group) were randomly divided into COAL, COAL/ RT, COAL/WT, CP, CP/RT, CP/WT, RT, WT, and CONT (without treatment). Simulated toothbrushing and whitening treatments were followed by colorimetric (ΔE 00 , L*, a*, b*), surface roughness (Ra), and enamel topography assays. ΔE 00 was submitted to two-way ANOVA and Tukey test. Color coordinates and Ra were tested with three-way repeated measures ANOVA (α = 5%). Results: COAL exhibited greater ΔE 00 than CONT (P = .048), but it did not enhance ΔE 00 promoted by RT or WT (P > .05). COAL alone increased Ra (P < .001) and altered enamel topography. COAL did not increase Ra caused by RT and WT (P > .05). CP exhibited the highest ΔE 00 (P < .05), but it raised Ra and changed enamel topography to a less extent than COAL. Conclusion: Even though charcoal powder did not increase enamel Ra when combined with toothpastes, the topography was negatively impacted by COAL. Also, COAL was unable to enhance the color change of RT and WT, or reach the effectiveness of CP. Clinical Significance: The use of activated charcoal-based product, claimed as a natural whitener, before brushing with toothpastes is not only ineffective to change the color of teeth, but also it might result in alterations on the enamel surface. Whitening with CP, instead, was effective during the same period of treatment, which still represents a more appropriate technique to whiten teeth.

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Section: Discussionmentioning

confidence: 99%

Section: Brushing Protocolmentioning

confidence: 99%

Effects of activated charcoal powder combined with toothpastes on enamel color change and surface properties

Palandi

Kury

Picolo

et al. 2020

J Esthet Restor Dent

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“…This treatment is considered relatively safe, effective and easy to perform [1]. Although tooth whitening is an effective treatment, adverse effects can be observed in the teeth, such as a reduction in the bond strength of restorations performed immediately after bleaching [2], increased enamel surface roughness [3] and morphological and structural alterations in the enamel [4] and dentin [5].…”

Section: O R I G I N a L A R T I C L Ementioning

confidence: 99%

“…These changes are attributed to hydrogen peroxide-based agents that modify the organic and inorganic composition of the enamel [4]. Some remineralizing components, such as fluoride, calcium, amorphous calcium phosphate and hydroxyapatite are used to minimize adverse effects of bleaching treatments on the enamel [6].…”

Section: O R I G I N a L A R T I C L Ementioning

confidence: 99%

Effect of different concentrations of nanohydroxyapatite on tooth bleaching effectiveness and enamel bond strength

Ferraz

Júnior

Ambrosano

et al. 2018

BDS

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Objective: To evaluate the effect of 35% hydrogen peroxide (35% HP) combined to different concentrations of nanohydroxyapatite (nHA) on the effectiveness of dental bleaching (superficial enamel and deep dentin) and enamel bond strength. Material and Methods: Fifty bovine dental specimens (5x5x2mm) were divided into 5 groups, according to the treatments (n = 10): no bleaching (negative control); 35% HP (positive control); 35% HP+ 5% nHA; 35% HP + 10% nHa; and 35% HP + 15% nHA. Three in-office bleaching sessions were made. The color analysis was performed on the enamel surface and the opposite dentin, using a spectrophotometer. The results were expressed in the CIE L*a*b* system. After this, the adhesive system was applied to the tooth structure, and the dental specimens received a composite restoration. The microshear bond strength test was performed 24 h after the restoration. Data were submitted to ANOVA and Tukey's test (α=0.05). Results: For the enamel color analysis, all bleached groups differed statistically from the unbleached group, with increasing L* values and decreasing b* values. The addition of different concentrations of nHA did not interfere with the bleaching effectiveness for the enamel and opposite dentin. For microshear bond strength, no statistically significant differences were presented between groups. The adhesive failure rate of the 35% HP + 10% nHA group was lower than the 35% HP group and similar to the negative control. Conclusion: The addition of different concentrations of nHA in 35% of hydrogen peroxide did not interfere with the bleaching efficacy of enamel and deep dentin and did not affect the enamel bond strength after bleaching KeywordsEnamel; Shear strength; Tooth bleaching.<div><hr align="left" size="1" width="33%" /><div> </div></div>

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“…The reaction products are lower in molecular weight when compared to the original stain molecule, and these properties make the products easier to remove from the dental structure (7). Regardless of the technique and bleaching agent employed, adverse effects have been reported, to include: tooth sensitivity (8); changes in surface morphology; and changes to the physical-chemical properties of the dental hard tissues such as an increase in enamel roughness, a decrease in surface microhardness, and an alteration in mineral content (9)(10)(11)(12)(13). Some remineralizing compounds, such as fluoride, calcium, bioactive glass, arginine/calcium carbonate, and nanohydroxyapatite; have been investigated to minimize these adverse effects (10,12,(14)(15)(16).…”

Section: Introductionmentioning

confidence: 99%

Effect of in-office bleaching gels with calcium or fluoride on color, roughness, and enamel microhardness

Vieira¹,

Vieira-Júnior²,

Pauli³

et al. 2020

J Clin Exp Dent

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Effect of Toothpaste Use Against Mineral Loss Promoted by Dental Bleaching

Abstract: The toothpastes containing bioactive glass or arginine carbonate used prior to dental bleaching were effective in protecting enamel against mineral loss promoted by the whitening procedure.

Cited by 41 publications

References 35 publications

Effects of activated charcoal powder combined with toothpastes on enamel color change and surface properties

Effects of activated charcoal powder combined with toothpastes on enamel color change and surface properties

Effect of different concentrations of nanohydroxyapatite on tooth bleaching effectiveness and enamel bond strength

Effect of in-office bleaching gels with calcium or fluoride on color, roughness, and enamel microhardness

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