Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study
Autor(a) principal: | |
---|---|
Data de Publicação: | 2013 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UNESP |
Texto Completo: | http://dx.doi.org/10.1590/0103-6440201302000 http://hdl.handle.net/11449/76297 |
Resumo: | This study evaluated the effect of different concentrations of sodium trimetaphosphate (TMP) with and without fluoride (F) on the concentration of calcium (Ca), phosphorus (P) and F in hydroxyapatite (HA). Synthetic HA powder (0.15 g) was suspended (n=6) in solutions (75 mL) of TMP at 0%, 0.1%, 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 2.0%, 4.0%, 6.0%, 8.0% and 10% concentrations in the presence and absence of 100 ppm F and subjected to a pH-cycling process. The precipitates were filtrated, dried at 70° C for 24 h and ground onto a fine powder. The concentrations of F (KOH (CaF2) and HCl (FA) soluble), Ca (Arsenazo III), and P (molybdate method) in HA were determined. The Ca P, and Ca/P ratio data were subjected to Tukey's test and the F data were subjected to Student-Newman-Keuls test (p<0.05). The addition of TMP to the samples reduced F deposition to 98% (p<0.001). The groups containing 100 ppm F and 0.4% or 0.6% TMP exhibited a higher Ca concentration than the group containing only 100 ppm F (p<0.05). Furthermore, the HA treated with 0.2% and 0.4% TMP and 100 ppm F showed a higher Ca/P ratio than the other groups (p<0.001). In conclusion, TMP at 0.2%, 0.4% and 0.6% concentrations combined with F seemed to be able to precipitate HA with low solubility. However, especially at high concentrations, TMP interferes with F deposition on HA. |
id |
UNSP_2c44daf50cbb87e24d9d9f6c4e5c0bb3 |
---|---|
oai_identifier_str |
oai:repositorio.unesp.br:11449/76297 |
network_acronym_str |
UNSP |
network_name_str |
Repositório Institucional da UNESP |
repository_id_str |
2946 |
spelling |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro studyDemineralizationFluorideHydroxyapatiteSolubilityTrimetaphosphateThis study evaluated the effect of different concentrations of sodium trimetaphosphate (TMP) with and without fluoride (F) on the concentration of calcium (Ca), phosphorus (P) and F in hydroxyapatite (HA). Synthetic HA powder (0.15 g) was suspended (n=6) in solutions (75 mL) of TMP at 0%, 0.1%, 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 2.0%, 4.0%, 6.0%, 8.0% and 10% concentrations in the presence and absence of 100 ppm F and subjected to a pH-cycling process. The precipitates were filtrated, dried at 70° C for 24 h and ground onto a fine powder. The concentrations of F (KOH (CaF2) and HCl (FA) soluble), Ca (Arsenazo III), and P (molybdate method) in HA were determined. The Ca P, and Ca/P ratio data were subjected to Tukey's test and the F data were subjected to Student-Newman-Keuls test (p<0.05). The addition of TMP to the samples reduced F deposition to 98% (p<0.001). The groups containing 100 ppm F and 0.4% or 0.6% TMP exhibited a higher Ca concentration than the group containing only 100 ppm F (p<0.05). Furthermore, the HA treated with 0.2% and 0.4% TMP and 100 ppm F showed a higher Ca/P ratio than the other groups (p<0.001). In conclusion, TMP at 0.2%, 0.4% and 0.6% concentrations combined with F seemed to be able to precipitate HA with low solubility. However, especially at high concentrations, TMP interferes with F deposition on HA.Department of Pediatric Dentistry and Public Health Dental School UNESP - Universidade Estadual Paulista, Araçatuba, SPDepartment of Pediatric Dentistry and Public Health Dental School UNESP - Universidade Estadual Paulista, Araçatuba, SPUniversidade Estadual Paulista (Unesp)Souza, José Antonio Santos [UNESP]do Amaral, Jackeline Gallo [UNESP]Moraes, João Carlos Silos [UNESP]Sassaki, Kikue Takebayashi [UNESP]Delbem, Alberto Carlos Botazzo [UNESP]2014-05-27T11:30:11Z2014-05-27T11:30:11Z2013-08-20info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article235-240application/pdfhttp://dx.doi.org/10.1590/0103-6440201302000Brazilian Dental Journal, v. 24, n. 3, p. 235-240, 2013.0103-64401806-4760http://hdl.handle.net/11449/7629710.1590/0103-6440201302000S0103-64402013020002-s2.0-848815180182-s2.0-84881518018.pdf72394710166541330000-0002-8159-4853Scopusreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPengBrazilian Dental Journal0,476info:eu-repo/semantics/openAccess2024-01-06T06:23:37Zoai:repositorio.unesp.br:11449/76297Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462024-01-06T06:23:37Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false |
dc.title.none.fl_str_mv |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study |
title |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study |
spellingShingle |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study Souza, José Antonio Santos [UNESP] Demineralization Fluoride Hydroxyapatite Solubility Trimetaphosphate |
title_short |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study |
title_full |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study |
title_fullStr |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study |
title_full_unstemmed |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study |
title_sort |
Effect of sodium trimetaphosphate on hydroxyapatite solubility: An in vitro study |
author |
Souza, José Antonio Santos [UNESP] |
author_facet |
Souza, José Antonio Santos [UNESP] do Amaral, Jackeline Gallo [UNESP] Moraes, João Carlos Silos [UNESP] Sassaki, Kikue Takebayashi [UNESP] Delbem, Alberto Carlos Botazzo [UNESP] |
author_role |
author |
author2 |
do Amaral, Jackeline Gallo [UNESP] Moraes, João Carlos Silos [UNESP] Sassaki, Kikue Takebayashi [UNESP] Delbem, Alberto Carlos Botazzo [UNESP] |
author2_role |
author author author author |
dc.contributor.none.fl_str_mv |
Universidade Estadual Paulista (Unesp) |
dc.contributor.author.fl_str_mv |
Souza, José Antonio Santos [UNESP] do Amaral, Jackeline Gallo [UNESP] Moraes, João Carlos Silos [UNESP] Sassaki, Kikue Takebayashi [UNESP] Delbem, Alberto Carlos Botazzo [UNESP] |
dc.subject.por.fl_str_mv |
Demineralization Fluoride Hydroxyapatite Solubility Trimetaphosphate |
topic |
Demineralization Fluoride Hydroxyapatite Solubility Trimetaphosphate |
description |
This study evaluated the effect of different concentrations of sodium trimetaphosphate (TMP) with and without fluoride (F) on the concentration of calcium (Ca), phosphorus (P) and F in hydroxyapatite (HA). Synthetic HA powder (0.15 g) was suspended (n=6) in solutions (75 mL) of TMP at 0%, 0.1%, 0.2%, 0.4%, 0.6%, 0.8%, 1.0%, 2.0%, 4.0%, 6.0%, 8.0% and 10% concentrations in the presence and absence of 100 ppm F and subjected to a pH-cycling process. The precipitates were filtrated, dried at 70° C for 24 h and ground onto a fine powder. The concentrations of F (KOH (CaF2) and HCl (FA) soluble), Ca (Arsenazo III), and P (molybdate method) in HA were determined. The Ca P, and Ca/P ratio data were subjected to Tukey's test and the F data were subjected to Student-Newman-Keuls test (p<0.05). The addition of TMP to the samples reduced F deposition to 98% (p<0.001). The groups containing 100 ppm F and 0.4% or 0.6% TMP exhibited a higher Ca concentration than the group containing only 100 ppm F (p<0.05). Furthermore, the HA treated with 0.2% and 0.4% TMP and 100 ppm F showed a higher Ca/P ratio than the other groups (p<0.001). In conclusion, TMP at 0.2%, 0.4% and 0.6% concentrations combined with F seemed to be able to precipitate HA with low solubility. However, especially at high concentrations, TMP interferes with F deposition on HA. |
publishDate |
2013 |
dc.date.none.fl_str_mv |
2013-08-20 2014-05-27T11:30:11Z 2014-05-27T11:30:11Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://dx.doi.org/10.1590/0103-6440201302000 Brazilian Dental Journal, v. 24, n. 3, p. 235-240, 2013. 0103-6440 1806-4760 http://hdl.handle.net/11449/76297 10.1590/0103-6440201302000 S0103-6440201302000 2-s2.0-84881518018 2-s2.0-84881518018.pdf 7239471016654133 0000-0002-8159-4853 |
url |
http://dx.doi.org/10.1590/0103-6440201302000 http://hdl.handle.net/11449/76297 |
identifier_str_mv |
Brazilian Dental Journal, v. 24, n. 3, p. 235-240, 2013. 0103-6440 1806-4760 10.1590/0103-6440201302000 S0103-6440201302000 2-s2.0-84881518018 2-s2.0-84881518018.pdf 7239471016654133 0000-0002-8159-4853 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.none.fl_str_mv |
Brazilian Dental Journal 0,476 |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
235-240 application/pdf |
dc.source.none.fl_str_mv |
Scopus reponame:Repositório Institucional da UNESP instname:Universidade Estadual Paulista (UNESP) instacron:UNESP |
instname_str |
Universidade Estadual Paulista (UNESP) |
instacron_str |
UNESP |
institution |
UNESP |
reponame_str |
Repositório Institucional da UNESP |
collection |
Repositório Institucional da UNESP |
repository.name.fl_str_mv |
Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP) |
repository.mail.fl_str_mv |
|
_version_ |
1797790215166754816 |