Effect of acidity of in-office bleaching gels on tooth sensitivity and whitening: a two-center double-blind randomized clinical trial

Loguércio, Alessandro Dourado; Servat, F.; Stanislawczuk, Rodrigo; Mena-Serrano, Alexandra; Rezende, Márcia; Prieto, María Vicente; Cereño, V.; Rojas, M. F.; Ortega, Karen Sanabria; Fernández, Eduardo; Reis, Alessandra

doi:10.1007/s00784-017-2083-5

Cited by 84 publications

(108 citation statements)

References 27 publications

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“…The first objective of this study was to assess the possible impact of pH on the color change comparing two in‐office bleaching gels with different pH values. The results showed that no significant difference in the color change was observed when both groups were evaluated at each time, as well as previously observed for immediate evaluation . This observation leads us to accept the first null hypothesis.…”

Section: Discussionsupporting

confidence: 92%

“…This study is the 12‐month follow‐up of an earlier study registered at http://rebec.gov.br under the identification number RBR‐3h6n6c. All 12‐month recall measurements were performed in the clinic of Dental School of the local University from June 2016 to June 2017.…”

Section: Methodsmentioning

confidence: 99%

“…This study is the 12-month follow-up of an earlier study 17 19 and respecting the principles of the Declaration of Helsinki. The participants signed an informed consent form and 2 weeks before the bleaching procedures, all of the volunteers received a dental screening, dental prophylaxis with pumice and water with a rubber cup.…”

Section: Methodsmentioning

confidence: 99%

“…11,12 More recently, in-office bleaching gels with alkaline/neutral pH, 13 which are less aggressive to tooth structure have been launched in the market, in an effort of manufacturers to reduce this side effect. Recently published clinical studies have hypothesized that in-office bleaching agents with alkaline/neutral pH are as effective as the previous ones, [14][15][16][17] which is explained by the fact that bleaching may occur independently of the pH of the bleaching gel. 18 However, to the extent of our knowledge, the role of pH of in-office bleaching gel in the long-term efficacy has not been evaluated yet.…”

mentioning

confidence: 99%

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One‐year bleaching efficacy using two HP products with different pH: A double‐blind randomized clinical trial

Bersezio

Martín

Prieto

et al. 2019

J Esthet Restor Dent

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Objectives This split‐mouth, double‐blind, randomized clinical trial evaluated the 1‐year bleaching efficacy produced by two hydrogen peroxide gels with different pHs. Materials and Methods Twenty‐eight patients were divided into two groups corresponding to two different products: Pola Office (pH = 2.0/SDI) and Pola Office Plus (pH = 7.0/SDI). The treatment was assessed during and after the bleaching procedure up to 12 months post‐treatment. The assessment consisted of two bleaching scales shade guide units (ΔSGU) and spectrophotometric device (ΔE, ΔE00, and Whiteness Index) of both maxillary quadrants. Results for ΔSGUs in both scales and ΔE00 and Whiteness Index were compared using Mann Whitney test and ΔE measurements through the t‐Student test for paired samples in each evaluation time. The color rebound (1‐ vs 12‐month postbleaching data) was evaluated with Wilcoxon test (alpha = .05). Results During the different times of evaluation, the color variation was similar for both products (P > .05), both for subjective (ΔSGUs) and objective assessments (ΔE, ΔE00, and Whiteness Index). Also, both products showed a slight rebound after 12‐month postbleaching (P > .05). Conclusions Concerning the stability of color, in‐office dental whitening with two hydrogen peroxide gels of different pHs produced similar results, with no significant of regression, for 12 months postwhitening. Clinical Significance Bleaching using a neutral (pH = 7.0) in‐office gel demonstrated similar stability and rebound effect than an acidic one (pH = 2.0).

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Section: Discussionsupporting

confidence: 92%

Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

mentioning

confidence: 99%

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One‐year bleaching efficacy using two HP products with different pH: A double‐blind randomized clinical trial

Bersezio

Martín

Prieto

et al. 2019

J Esthet Restor Dent

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“…The acidic pH levels could reduce the mineral content of enamel and dentin. This change in the surface morphology reduces hardness properties and increases roughness . It has been reported that high concentrations of peroxide molecules can easily produce soft‐tissue burns and induce morphological changes in the enamel.…”

Section: Associated Issues To Whiteningmentioning

confidence: 99%

Tooth whitening: From the established treatments to novel approaches to prevent side effects

Rodríguez-Martínez

Valiente

Sánchez-Martín

2019

J Esthet Restor Dent

134

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Objective The aim is to review the most important aspects about tooth whitening treatments, their side effects, and the new emerging approaches to overcome them. Overview This review is focused on origin of tooth stains, the whitening systems and their chemistry, their side effects, and the new approaches. The search of bibliography of the period 1965‐2018 has been analyzed. Conclusions Tooth whitening has become one of the most requested dental treatments by the public. Tooth stains are classified according to their origin into two categories: intrinsic and extrinsic. The whitening systems are generally organized into two classes: in‐office and at‐home products. Most of the whitening systems use hydrogen peroxide as the active oxidative agent to degrade the organic compounds that cause stains. The concentration ranges depending on the treatment, and it may be applied directly or produced in a chemical reaction from carbamide peroxide that is more stable. Besides its popularity, tooth whitening still has some side effects being tooth hypersensitivity the most common. In order to decrease these side effects, new treatments are constantly in renewal processes. Clinical Significance Despite all the data and new strategies known about tooth whitening, there are many aspects that are not totally fully understood and methodologies that are not completely effective. Therefore, the development of effective, efficient, and long‐lasting whitening treatments is still necessary.

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In-Office Whitening: The Latest Evidence

Loguercio,

Martins,

da Silva

et al. 2023

Tooth Whitening

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Effect of acidity of in-office bleaching gels on tooth sensitivity and whitening: a two-center double-blind randomized clinical trial

Abstract: Clinicians should opt to use in-office bleaching with a neutral gel than an acid product because the former causes a significant lower risk and intensity of tooth sensitivity.

Cited by 84 publications

References 27 publications

One‐year bleaching efficacy using two HP products with different pH: A double‐blind randomized clinical trial

One‐year bleaching efficacy using two HP products with different pH: A double‐blind randomized clinical trial

Tooth whitening: From the established treatments to novel approaches to prevent side effects

In-Office Whitening: The Latest Evidence

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