Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption

Peiyan Yuan, Shuying Liu, Yingtao Lv, Weilong Liu, Weiqun Ma, Pingping XuStomatological Hospital, Southern Medical University, Guangzhou, People’s Republic of ChinaBackground: Dentin hypersensitivity is a common negative oral condition that can be treated with dentifrice containing hydroxy...

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Autores principales:	Yuan P, Liu S, Lv Y, Liu W, Ma W, Xu P
Formato:	article
Lenguaje:	EN
Publicado:	Dove Medical Press 2019
Materias:	dentin hypersensitivity nano-hydroxyapatite dentifrice heavy metal ion chromium ion Medicine (General) R5-920
Acceso en línea:	https://doaj.org/article/cc6ae2797d6a497693f0feea282598be
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spelling	oai:doaj.org-article:cc6ae2797d6a497693f0feea282598be2021-12-02T02:30:25ZEffect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption1178-2013https://doaj.org/article/cc6ae2797d6a497693f0feea282598be2019-07-01T00:00:00Zhttps://www.dovepress.com/effect-of-a-dentifrice-containing-different-particle-sizes-of-hydroxya-peer-reviewed-article-IJNhttps://doaj.org/toc/1178-2013Peiyan Yuan, Shuying Liu, Yingtao Lv, Weilong Liu, Weiqun Ma, Pingping XuStomatological Hospital, Southern Medical University, Guangzhou, People’s Republic of ChinaBackground: Dentin hypersensitivity is a common negative oral condition that can be treated with dentifrice containing hydroxyapatite (HA). The study evaluated the effect of nano-HA dentifrice on plugging the dentinal tubules for an anti-sensitivity reaction compared to a dentifrice containing common-sized particles. Also, the adsorption capacity of different particle sizes of HA mixed in a dentifrice and which is the optimal particle size was considered.Methods: Fourty premolar dentine discs and fourty molar dentine discs were randomly divided into 4 groups: distilled water group, ordinary dentifrice group and 80, 300 nm HA dentifrice group. Each dentin disc was brushed with a dentifrice twice daily at 7600 rpm under 100 g force for 2 mins for 7 consecutive days and divided into two parts, half of the dentin disc was detected by the scanning electron microscope (SEM) and energy dispersive spectrometer (EDS), the other half was brushed with distilled water and observed by SEM. One milliliter dentifrice solution (80 nm HA dentifrice, 300 nm HA dentifrice, ordinary dentifrice) was added to 50 ml potassium dichromate solution for 1, 14, and 28 d. The residual Chromium (Cr6+,) concentration in the supernatant was measured by the diphenylcarbon phthalocyanine hydrazine method. The elemental constitution in the precipitate was detected by EDS. The Kruskal-Wallis test was used to analyze surface mineralization and different plugging rates of dentinal tubules. The absorption capacity of dentifrices were also evaluated by the Kruskal-Wallis test. Results: The plugging rate in the HA dentifrice group was higher than that in the ordinary dentifrice group, and the 80 nm HA dentifrice group showed the best result. The atomic percentages of Ca and P of 80 nm dentifrice group on the surface of dentinal tubules were the highest. The 80 nm HA dentifrice group showed the best adsorption and stable effect of Cr,6+ followed by the 300 nm HA dentifrice group. The 300 nm HA dentifrice and the ordinary dentifrice showed desorption phenomenon.Conclusions: The dentifrice containing HA, especially the 80 nm HA dentifrice, exerts good dentinal tubule occlusion and surface mineralization effect. This dentifrice was also a good adsorbent of Cr6+,.Keywords: dentin hypersensitivity, nano-hydroxyapatite, dentifrice, heavy metal ion, chromium ionYuan PLiu SLv YLiu WMa WXu PDove Medical Pressarticledentin hypersensitivitynano-hydroxyapatitedentifriceheavy metal ionchromium ionMedicine (General)R5-920ENInternational Journal of Nanomedicine, Vol Volume 14, Pp 5243-5256 (2019)
institution	DOAJ
collection	DOAJ
language	EN
topic	dentin hypersensitivity nano-hydroxyapatite dentifrice heavy metal ion chromium ion Medicine (General) R5-920
spellingShingle	dentin hypersensitivity nano-hydroxyapatite dentifrice heavy metal ion chromium ion Medicine (General) R5-920 Yuan P Liu S Lv Y Liu W Ma W Xu P Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption
description	Peiyan Yuan, Shuying Liu, Yingtao Lv, Weilong Liu, Weiqun Ma, Pingping XuStomatological Hospital, Southern Medical University, Guangzhou, People’s Republic of ChinaBackground: Dentin hypersensitivity is a common negative oral condition that can be treated with dentifrice containing hydroxyapatite (HA). The study evaluated the effect of nano-HA dentifrice on plugging the dentinal tubules for an anti-sensitivity reaction compared to a dentifrice containing common-sized particles. Also, the adsorption capacity of different particle sizes of HA mixed in a dentifrice and which is the optimal particle size was considered.Methods: Fourty premolar dentine discs and fourty molar dentine discs were randomly divided into 4 groups: distilled water group, ordinary dentifrice group and 80, 300 nm HA dentifrice group. Each dentin disc was brushed with a dentifrice twice daily at 7600 rpm under 100 g force for 2 mins for 7 consecutive days and divided into two parts, half of the dentin disc was detected by the scanning electron microscope (SEM) and energy dispersive spectrometer (EDS), the other half was brushed with distilled water and observed by SEM. One milliliter dentifrice solution (80 nm HA dentifrice, 300 nm HA dentifrice, ordinary dentifrice) was added to 50 ml potassium dichromate solution for 1, 14, and 28 d. The residual Chromium (Cr6+,) concentration in the supernatant was measured by the diphenylcarbon phthalocyanine hydrazine method. The elemental constitution in the precipitate was detected by EDS. The Kruskal-Wallis test was used to analyze surface mineralization and different plugging rates of dentinal tubules. The absorption capacity of dentifrices were also evaluated by the Kruskal-Wallis test. Results: The plugging rate in the HA dentifrice group was higher than that in the ordinary dentifrice group, and the 80 nm HA dentifrice group showed the best result. The atomic percentages of Ca and P of 80 nm dentifrice group on the surface of dentinal tubules were the highest. The 80 nm HA dentifrice group showed the best adsorption and stable effect of Cr,6+ followed by the 300 nm HA dentifrice group. The 300 nm HA dentifrice and the ordinary dentifrice showed desorption phenomenon.Conclusions: The dentifrice containing HA, especially the 80 nm HA dentifrice, exerts good dentinal tubule occlusion and surface mineralization effect. This dentifrice was also a good adsorbent of Cr6+,.Keywords: dentin hypersensitivity, nano-hydroxyapatite, dentifrice, heavy metal ion, chromium ion
format	article
author	Yuan P Liu S Lv Y Liu W Ma W Xu P
author_facet	Yuan P Liu S Lv Y Liu W Ma W Xu P
author_sort	Yuan P
title	Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption
title_short	Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption
title_full	Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption
title_fullStr	Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption
title_full_unstemmed	Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption
title_sort	effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous cr (vi) sorption
publisher	Dove Medical Press
publishDate	2019
url	https://doaj.org/article/cc6ae2797d6a497693f0feea282598be
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Effect of a dentifrice containing different particle sizes of hydroxyapatite on dentin tubule occlusion and aqueous Cr (VI) sorption

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