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Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium

PURPOSE: The purpose of this study was to evaluate changes in calcium and phosphorus content in dental enamel when subjected to “in-office” whitening for an extended time by using a 35% hydrogen peroxide solution, with and without calcium. MATERIALS AND METHODS: 10 human teeth, from which the roots...

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Autores principales: Moreira, Rudá França, Santos, Fábio Pinheiro, Santos, Estevão Antero, dos Santos, Ramon Silva, dos Anjos, Marcelino José, de Miranda, Mauro Sayão
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2017
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5592391/
https://www.ncbi.nlm.nih.gov/pubmed/28932242
http://dx.doi.org/10.1155/2017/4646789
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author Moreira, Rudá França
Santos, Fábio Pinheiro
Santos, Estevão Antero
dos Santos, Ramon Silva
dos Anjos, Marcelino José
de Miranda, Mauro Sayão
author_facet Moreira, Rudá França
Santos, Fábio Pinheiro
Santos, Estevão Antero
dos Santos, Ramon Silva
dos Anjos, Marcelino José
de Miranda, Mauro Sayão
author_sort Moreira, Rudá França
collection PubMed
description PURPOSE: The purpose of this study was to evaluate changes in calcium and phosphorus content in dental enamel when subjected to “in-office” whitening for an extended time by using a 35% hydrogen peroxide solution, with and without calcium. MATERIALS AND METHODS: 10 human teeth, from which the roots had been removed, were embedded in epoxy resin, and their surfaces were smoothed. The specimens were divided into two groups; in group 1, a whitening solution without calcium was used, while in group 2, the solution included calcium. Each specimen was evaluated at 6 different points before the bleaching treatment, and these points were reassessed after each session. A total of five sessions were carried out. Concentrations of calcium and phosphorus were measured by using the technique of X-ray fluorescence. RESULTS: After performing a statistical analysis, it was found that there was no statistically significant loss of calcium and phosphorus during the whitening treatment, and the groups showed no statistical differences. CONCLUSION: Excessive use of hydrogen peroxide, with or without calcium, causes no loss of calcium and phosphorus.
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spelling pubmed-55923912017-09-20 Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium Moreira, Rudá França Santos, Fábio Pinheiro Santos, Estevão Antero dos Santos, Ramon Silva dos Anjos, Marcelino José de Miranda, Mauro Sayão Int J Dent Research Article PURPOSE: The purpose of this study was to evaluate changes in calcium and phosphorus content in dental enamel when subjected to “in-office” whitening for an extended time by using a 35% hydrogen peroxide solution, with and without calcium. MATERIALS AND METHODS: 10 human teeth, from which the roots had been removed, were embedded in epoxy resin, and their surfaces were smoothed. The specimens were divided into two groups; in group 1, a whitening solution without calcium was used, while in group 2, the solution included calcium. Each specimen was evaluated at 6 different points before the bleaching treatment, and these points were reassessed after each session. A total of five sessions were carried out. Concentrations of calcium and phosphorus were measured by using the technique of X-ray fluorescence. RESULTS: After performing a statistical analysis, it was found that there was no statistically significant loss of calcium and phosphorus during the whitening treatment, and the groups showed no statistical differences. CONCLUSION: Excessive use of hydrogen peroxide, with or without calcium, causes no loss of calcium and phosphorus. Hindawi 2017 2017-08-28 /pmc/articles/PMC5592391/ /pubmed/28932242 http://dx.doi.org/10.1155/2017/4646789 Text en Copyright © 2017 Rudá França Moreira et al. https://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Moreira, Rudá França
Santos, Fábio Pinheiro
Santos, Estevão Antero
dos Santos, Ramon Silva
dos Anjos, Marcelino José
de Miranda, Mauro Sayão
Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium
title Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium
title_full Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium
title_fullStr Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium
title_full_unstemmed Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium
title_short Analysis of the Chemical Modification of Dental Enamel Submitted to 35% Hydrogen Peroxide “In-Office” Whitening, with or without Calcium
title_sort analysis of the chemical modification of dental enamel submitted to 35% hydrogen peroxide “in-office” whitening, with or without calcium
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5592391/
https://www.ncbi.nlm.nih.gov/pubmed/28932242
http://dx.doi.org/10.1155/2017/4646789
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