The effect of two remineralizing agents and natural saliva on bleached enamel hardness

Background: In order to compensate the adverse consequences of bleaching agents, the use of fluoride-containing remineralizing agents has been suggested by many researchers. The aim of this study was to compare the effect of applying two remineralizing materials on bleached enamel hardness and in co...

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Published in:Dental research journal 2016-01, Vol.13 (1), p.52-57
Main Authors: Heshmat, Haleh, Ganjkar, Maryam, Miri, Yasaman, Fard, Mohamad
Format: Article
Language:English
Subjects:
Bleaches
Bleaching agents
Care and treatment
casein phosphopeptide-amorphous calcium phosphate nanocomplex
enamel
hardness
Original
Physiological aspects
Saliva
surface properties
Tooth diseases
tooth remineralization
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Ganjkar, Maryam
Miri, Yasaman
Fard, Mohamad
description Background: In order to compensate the adverse consequences of bleaching agents, the use of fluoride-containing remineralizing agents has been suggested by many researchers. The aim of this study was to compare the effect of applying two remineralizing materials on bleached enamel hardness and in comparison to natural saliva. Materials and Methods: In this experimental study, 30 enamel samples of sound human permanent molars were prepared for this study. Microhardness (MH) of all specimens was measured and 35% hydrogen peroxide was applied 3 times to the specimens. After completion of the bleaching process, MH of samples was measured and then enamel specimens were divided into three groups each of 10, specimens of groups 1 and 2 were subjected to daily application of hydroxyl apatite (Remin Pro) and casein phosphopeptide amorphous calcium phosphate fluoride (CPP-ACPF) (MI Paste Plus) pastes, respectively, for 15 days. In group 3, the specimens were stored in the operators′ natural saliva at room temperature in this period of time. Final MH of all groups was measured. The data were analyzed using repeated measures ANOVA (α = 0.05). Results: The hardness significantly decreased in all groups following bleaching. Application of either Remin Pro, CPP-ACPF or natural saliva increased the hardness significantly. The hardness of the three test groups after 15 days were statistically similar to each other. Conclusion: The hardness of enamel increases eventually after exposure to either MI Paste Plus, Remin Pro or natural saliva.
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The aim of this study was to compare the effect of applying two remineralizing materials on bleached enamel hardness and in comparison to natural saliva. Materials and Methods: In this experimental study, 30 enamel samples of sound human permanent molars were prepared for this study. Microhardness (MH) of all specimens was measured and 35% hydrogen peroxide was applied 3 times to the specimens. After completion of the bleaching process, MH of samples was measured and then enamel specimens were divided into three groups each of 10, specimens of groups 1 and 2 were subjected to daily application of hydroxyl apatite (Remin Pro) and casein phosphopeptide amorphous calcium phosphate fluoride (CPP-ACPF) (MI Paste Plus) pastes, respectively, for 15 days. In group 3, the specimens were stored in the operators′ natural saliva at room temperature in this period of time. Final MH of all groups was measured. The data were analyzed using repeated measures ANOVA (α = 0.05). Results: The hardness significantly decreased in all groups following bleaching. Application of either Remin Pro, CPP-ACPF or natural saliva increased the hardness significantly. The hardness of the three test groups after 15 days were statistically similar to each other. Conclusion: The hardness of enamel increases eventually after exposure to either MI Paste Plus, Remin Pro or natural saliva.</description><identifier>ISSN: 1735-3327</identifier><identifier>EISSN: 2008-0255</identifier><identifier>DOI: 10.4103/1735-3327.174713</identifier><identifier>PMID: 26962316</identifier><language>eng</language><publisher>Iran: Wolters Kluwer - Medknow Publications</publisher><subject>Bleaches ; Bleaching agents ; Care and treatment ; casein phosphopeptide-amorphous calcium phosphate nanocomplex ; enamel ; hardness ; Original ; Physiological aspects ; Saliva ; surface properties ; Tooth diseases ; tooth remineralization</subject><ispartof>Dental research journal, 2016-01, Vol.13 (1), p.52-57</ispartof><rights>COPYRIGHT 2016 Medknow Publications and Media Pvt. 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Results: The hardness significantly decreased in all groups following bleaching. Application of either Remin Pro, CPP-ACPF or natural saliva increased the hardness significantly. The hardness of the three test groups after 15 days were statistically similar to each other. Conclusion: The hardness of enamel increases eventually after exposure to either MI Paste Plus, Remin Pro or natural saliva.</abstract><cop>Iran</cop><pub>Wolters Kluwer - Medknow Publications</pub><pmid>26962316</pmid><doi>10.4103/1735-3327.174713</doi><tpages>6</tpages><oa>free_for_read</oa></addata></record>
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subjects Bleaches
Bleaching agents
Care and treatment
casein phosphopeptide-amorphous calcium phosphate nanocomplex
enamel
hardness
Original
Physiological aspects
Saliva
surface properties
Tooth diseases
tooth remineralization
title The effect of two remineralizing agents and natural saliva on bleached enamel hardness
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