The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle

Abstract Different proportions of mineral ions in saliva can influence the protective effect the salivary pellicle provides against dental erosion. To investigate the effect of different calcium concentrations in human saliva on the protection against enamel erosion, enamel specimens were divided in...

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Autores principales:	T. Baumann, R. Bereiter, A. Lussi, T. S. Carvalho
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2017
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/c7025d7503564e8d8c27b747bc4d053f
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spelling	oai:doaj.org-article:c7025d7503564e8d8c27b747bc4d053f2021-12-02T15:18:52ZThe effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle10.1038/s41598-017-13367-32045-2322https://doaj.org/article/c7025d7503564e8d8c27b747bc4d053f2017-10-01T00:00:00Zhttps://doi.org/10.1038/s41598-017-13367-3https://doaj.org/toc/2045-2322Abstract Different proportions of mineral ions in saliva can influence the protective effect the salivary pellicle provides against dental erosion. To investigate the effect of different calcium concentrations in human saliva on the protection against enamel erosion, enamel specimens were divided into 8 treatment groups: humid chamber (Ctrl); whole mouth stimulated human saliva (HS); artificial saliva containing different calcium concentrations (ASlow, ASmedium, AShigh); and dialysed human saliva containing different calcium concentrations (DSlow, DSmedium, DShigh). The specimens underwent 4 cycles of incubation in the treatment group followed by an erosive challenge. Surface hardness and calcium release were measured during the cycling process. All DS groups exhibited significantly higher enamel surface softening than HS and the corresponding AS groups. Among the DS groups, the surface softening was significantly higher in DSlow than in DShigh. No significant differences were found within the AS or DS groups regarding calcium release. The results of this study indicated that erosion protection conferred by saliva depends on an interplay between salivary proteins and ions. While both proteins and ions have a positive effect on their own, the combination of the two can lead to different degrees of protection or even negative effects, depending on the relative concentrations.T. BaumannR. BereiterA. LussiT. S. CarvalhoNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 7, Iss 1, Pp 1-9 (2017)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q T. Baumann R. Bereiter A. Lussi T. S. Carvalho The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle
description	Abstract Different proportions of mineral ions in saliva can influence the protective effect the salivary pellicle provides against dental erosion. To investigate the effect of different calcium concentrations in human saliva on the protection against enamel erosion, enamel specimens were divided into 8 treatment groups: humid chamber (Ctrl); whole mouth stimulated human saliva (HS); artificial saliva containing different calcium concentrations (ASlow, ASmedium, AShigh); and dialysed human saliva containing different calcium concentrations (DSlow, DSmedium, DShigh). The specimens underwent 4 cycles of incubation in the treatment group followed by an erosive challenge. Surface hardness and calcium release were measured during the cycling process. All DS groups exhibited significantly higher enamel surface softening than HS and the corresponding AS groups. Among the DS groups, the surface softening was significantly higher in DSlow than in DShigh. No significant differences were found within the AS or DS groups regarding calcium release. The results of this study indicated that erosion protection conferred by saliva depends on an interplay between salivary proteins and ions. While both proteins and ions have a positive effect on their own, the combination of the two can lead to different degrees of protection or even negative effects, depending on the relative concentrations.
format	article
author	T. Baumann R. Bereiter A. Lussi T. S. Carvalho
author_facet	T. Baumann R. Bereiter A. Lussi T. S. Carvalho
author_sort	T. Baumann
title	The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle
title_short	The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle
title_full	The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle
title_fullStr	The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle
title_full_unstemmed	The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle
title_sort	effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle
publisher	Nature Portfolio
publishDate	2017
url	https://doaj.org/article/c7025d7503564e8d8c27b747bc4d053f
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The effect of different salivary calcium concentrations on the erosion protection conferred by the salivary pellicle

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