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WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS

OBJECTIVES: Calcium hydroxide cements have been largely used in deep cavities due to their abilities to stimulate dentin formation. However, their resistance can be relatively low and their solubility relatively high, in many instances. This study evaluated water sorption and solubility of different...

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Autores principales: Francisconi, Luciana Fávaro, de Freitas, Anderson Pinheiro, Scaffa, Polliana Mendes Candia, Mondelli, Rafael Francisco Lia, Francisconi, Paulo Afonso Silveira
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Faculdade de Odontologia de Bauru da Universidade de São Paulo 2009
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327668/
https://www.ncbi.nlm.nih.gov/pubmed/19936520
http://dx.doi.org/10.1590/S1678-77572009000500014
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author Francisconi, Luciana Fávaro
de Freitas, Anderson Pinheiro
Scaffa, Polliana Mendes Candia
Mondelli, Rafael Francisco Lia
Francisconi, Paulo Afonso Silveira
author_facet Francisconi, Luciana Fávaro
de Freitas, Anderson Pinheiro
Scaffa, Polliana Mendes Candia
Mondelli, Rafael Francisco Lia
Francisconi, Paulo Afonso Silveira
author_sort Francisconi, Luciana Fávaro
collection PubMed
description OBJECTIVES: Calcium hydroxide cements have been largely used in deep cavities due to their abilities to stimulate dentin formation. However, their resistance can be relatively low and their solubility relatively high, in many instances. This study evaluated water sorption and solubility of different calcium hydroxide cements, in order to show alterations that may reduce their effectiveness. MATERIAL AND METHODS: Five discs (20 mm in diameter and 1.5 mm thick) of three different materials (Biocal(®), Dycal(®) and Hidro C(®)) were prepared with the aid of a ring-shaped metallic matrix. After being stored at 37°C for 24 h, the discs were weighed on a precision weight scale, dehydrated and weighed again. Immediately after weighing, discs were stored for a week in 50 mL of distilled water at 37°C and, then, weighed again, dehydrated and submitted to a new weighing. The loss of soluble material and its water sorption was obtained from the difference between the initial and the final dry mass of each disc, after 1 week of immersion in water. Data were analyzed for significant differences by two-way ANOVA and Tukey's test (p<0.05). RESULTS: Mean water sorption values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal(®) (0.006 ± 0.001 / 2.15); Dycal(®) (0.016 ± 0.004 / 5.49); and Hidro C(®) (0.025 ± 0.003 / 8.27). Mean solubility values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal(®) (0.002 ± 0.001 / 0.72); Dycal(®) (0.013 ± 0.004 / 4.21); and Hidro C(®) (0.023 ± 0.004 / 7.65). CONCLUSIONS: Biocal(®) absorbed less water and was less soluble than the other evaluated cements; Hidro C(®) exhibited the highest water sorption and solubility values; and there were significant differences among all evaluated experimental groups.
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spelling pubmed-43276682015-03-11 WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS Francisconi, Luciana Fávaro de Freitas, Anderson Pinheiro Scaffa, Polliana Mendes Candia Mondelli, Rafael Francisco Lia Francisconi, Paulo Afonso Silveira J Appl Oral Sci Original Article OBJECTIVES: Calcium hydroxide cements have been largely used in deep cavities due to their abilities to stimulate dentin formation. However, their resistance can be relatively low and their solubility relatively high, in many instances. This study evaluated water sorption and solubility of different calcium hydroxide cements, in order to show alterations that may reduce their effectiveness. MATERIAL AND METHODS: Five discs (20 mm in diameter and 1.5 mm thick) of three different materials (Biocal(®), Dycal(®) and Hidro C(®)) were prepared with the aid of a ring-shaped metallic matrix. After being stored at 37°C for 24 h, the discs were weighed on a precision weight scale, dehydrated and weighed again. Immediately after weighing, discs were stored for a week in 50 mL of distilled water at 37°C and, then, weighed again, dehydrated and submitted to a new weighing. The loss of soluble material and its water sorption was obtained from the difference between the initial and the final dry mass of each disc, after 1 week of immersion in water. Data were analyzed for significant differences by two-way ANOVA and Tukey's test (p<0.05). RESULTS: Mean water sorption values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal(®) (0.006 ± 0.001 / 2.15); Dycal(®) (0.016 ± 0.004 / 5.49); and Hidro C(®) (0.025 ± 0.003 / 8.27). Mean solubility values (g) ± standard deviation and percentage (%), for each evaluated cement, were: Biocal(®) (0.002 ± 0.001 / 0.72); Dycal(®) (0.013 ± 0.004 / 4.21); and Hidro C(®) (0.023 ± 0.004 / 7.65). CONCLUSIONS: Biocal(®) absorbed less water and was less soluble than the other evaluated cements; Hidro C(®) exhibited the highest water sorption and solubility values; and there were significant differences among all evaluated experimental groups. Faculdade de Odontologia de Bauru da Universidade de São Paulo 2009-10 /pmc/articles/PMC4327668/ /pubmed/19936520 http://dx.doi.org/10.1590/S1678-77572009000500014 Text en http://creativecommons.org/licenses/by-nc/3.0/ This is an Open Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License, which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Original Article
Francisconi, Luciana Fávaro
de Freitas, Anderson Pinheiro
Scaffa, Polliana Mendes Candia
Mondelli, Rafael Francisco Lia
Francisconi, Paulo Afonso Silveira
WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS
title WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS
title_full WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS
title_fullStr WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS
title_full_unstemmed WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS
title_short WATER SORPTION AND SOLUBILITY OF DIFFERENT CALCIUM HYDROXIDE CEMENTS
title_sort water sorption and solubility of different calcium hydroxide cements
topic Original Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4327668/
https://www.ncbi.nlm.nih.gov/pubmed/19936520
http://dx.doi.org/10.1590/S1678-77572009000500014
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