Higher fluorosis severity makes enamel less resistant to demineralization
Fluorotic teeth could either be more resistant or more susceptible to the caries process than sound ones due to their higher enamel fluoride concentration and higher porosity (subsurface hypomineralization), respectively; however, there is no consensus on this subject. In this study, a total of 49 h...
- Autores:
-
Marín, Lina María
Aparecido Cury, Jaime
Andaló Tenuta, Livia Maria
Castellanos, Jaime
Martignon, Stefania
- Tipo de recurso:
- Article of journal
- Fecha de publicación:
- 2020
- Institución:
- Universidad El Bosque
- Repositorio:
- Repositorio U. El Bosque
- Idioma:
- eng
- OAI Identifier:
- oai:repositorio.unbosque.edu.co:20.500.12495/3643
- Acceso en línea:
- http://hdl.handle.net/20.500.12495/3643
https://doi.org/10.1159/000447270
https://repositorio.unbosque.edu.co
- Palabra clave:
- Hypomineralization
Dental caries resistance
Dental enamel
- Rights
- openAccess
- License
- Acceso abierto
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Repositorio U. El Bosque |
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|
dc.title.spa.fl_str_mv |
Higher fluorosis severity makes enamel less resistant to demineralization |
dc.title.translated.spa.fl_str_mv |
Higher fluorosis severity makes enamel less resistant to demineralization |
title |
Higher fluorosis severity makes enamel less resistant to demineralization |
spellingShingle |
Higher fluorosis severity makes enamel less resistant to demineralization Hypomineralization Dental caries resistance Dental enamel |
title_short |
Higher fluorosis severity makes enamel less resistant to demineralization |
title_full |
Higher fluorosis severity makes enamel less resistant to demineralization |
title_fullStr |
Higher fluorosis severity makes enamel less resistant to demineralization |
title_full_unstemmed |
Higher fluorosis severity makes enamel less resistant to demineralization |
title_sort |
Higher fluorosis severity makes enamel less resistant to demineralization |
dc.creator.fl_str_mv |
Marín, Lina María Aparecido Cury, Jaime Andaló Tenuta, Livia Maria Castellanos, Jaime Martignon, Stefania |
dc.contributor.author.none.fl_str_mv |
Marín, Lina María Aparecido Cury, Jaime Andaló Tenuta, Livia Maria Castellanos, Jaime Martignon, Stefania |
dc.contributor.orcid.none.fl_str_mv |
Castellanos, Jaime [0000-0003-1596-8383] Martignon, Stefania [0000-0002-6505-8356] |
dc.subject.keywords.spa.fl_str_mv |
Hypomineralization Dental caries resistance Dental enamel |
topic |
Hypomineralization Dental caries resistance Dental enamel |
description |
Fluorotic teeth could either be more resistant or more susceptible to the caries process than sound ones due to their higher enamel fluoride concentration and higher porosity (subsurface hypomineralization), respectively; however, there is no consensus on this subject. In this study, a total of 49 human unerupted third molars presenting Thylstrup and Fejerskov (TF) fluorosis scores 0-4 were used. Two enamel slabs were obtained from each tooth. The rest of the tooth crown was powdered, and the enamel was separated from the dentine. In purified powdered enamel, the calcium (Ca), inorganic phosphate (Pi), and fluoride (F) concentrations were determined. The F concentration gradient throughout the enamel and in the enamel volume was determined in one slab. The other enamel slab was isolated with acid-resistant varnish, subjecting the exposed enamel surface half to a pH-cycling model to evaluate its demineralization resistance and to calculate the demineralization area. The nonexposed surface was used to determine the natural hypomineralization area found in fluorotic enamel and normalize the demineralization data. The hypomineralization and demineralization areas were assessed by cross-sectional microhardness. For statistical analyses, the data for TF1 and 2, and for TF3 and 4 were pooled. Concentrations of powered enamel Ca and Pi were not significantly different (p > 0.05) among groups TF0, TF1-2 and TF3-4, but a higher F concentration was found in fluorotic enamel (p < 0.05). Highly fluorotic teeth (TF3-4) presented a greater hypomineralization subsurface area and demonstrated lower demineralization resistance than sound enamel (p < 0.05). The findings suggest that a higher severity of fluorosis makes enamel less resistant to the caries process due to its greater subsurface mineral area exposed to demineralization and deeper acid diffusion through the enamel. |
publishDate |
2020 |
dc.date.accessioned.none.fl_str_mv |
2020-07-31T17:57:24Z |
dc.date.available.none.fl_str_mv |
2020-07-31T17:57:24Z |
dc.type.coar.fl_str_mv |
http://purl.org/coar/resource_type/c_2df8fbb1 |
dc.type.coarversion.fl_str_mv |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
dc.type.local.none.fl_str_mv |
Artículo de revista |
dc.type.coar.none.fl_str_mv |
http://purl.org/coar/resource_type/c_6501 |
dc.type.driver.none.fl_str_mv |
info:eu-repo/semantics/article |
format |
http://purl.org/coar/resource_type/c_6501 |
dc.identifier.issn.none.fl_str_mv |
1421-976X |
dc.identifier.uri.none.fl_str_mv |
http://hdl.handle.net/20.500.12495/3643 |
dc.identifier.doi.none.fl_str_mv |
https://doi.org/10.1159/000447270 |
dc.identifier.instname.spa.fl_str_mv |
instname:Universidad El Bosque |
dc.identifier.reponame.spa.fl_str_mv |
reponame:Repositorio Institucional Universidad El Bosque |
dc.identifier.repourl.none.fl_str_mv |
https://repositorio.unbosque.edu.co |
identifier_str_mv |
1421-976X instname:Universidad El Bosque reponame:Repositorio Institucional Universidad El Bosque |
url |
http://hdl.handle.net/20.500.12495/3643 https://doi.org/10.1159/000447270 https://repositorio.unbosque.edu.co |
dc.language.iso.none.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartofseries.spa.fl_str_mv |
Caries research, 1421-976X, Vol. 50, Nro. 4, 2016, p. 407-413 |
dc.relation.uri.none.fl_str_mv |
https://www.karger.com/Article/FullText/447270 |
dc.rights.local.spa.fl_str_mv |
Acceso abierto |
dc.rights.accessrights.none.fl_str_mv |
http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess Acceso abierto |
dc.rights.creativecommons.none.fl_str_mv |
2016-07-27 |
rights_invalid_str_mv |
Acceso abierto http://purl.org/coar/access_right/c_abf2 2016-07-27 |
eu_rights_str_mv |
openAccess |
dc.format.mimetype.none.fl_str_mv |
application/pdf |
dc.publisher.spa.fl_str_mv |
Karger |
dc.publisher.journal.spa.fl_str_mv |
Caries research |
institution |
Universidad El Bosque |
bitstream.url.fl_str_mv |
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spelling |
Marín, Lina MaríaAparecido Cury, JaimeAndaló Tenuta, Livia MariaCastellanos, JaimeMartignon, StefaniaCastellanos, Jaime [0000-0003-1596-8383]Martignon, Stefania [0000-0002-6505-8356]2020-07-31T17:57:24Z2020-07-31T17:57:24Z1421-976Xhttp://hdl.handle.net/20.500.12495/3643https://doi.org/10.1159/000447270instname:Universidad El Bosquereponame:Repositorio Institucional Universidad El Bosquehttps://repositorio.unbosque.edu.coapplication/pdfengKargerCaries researchCaries research, 1421-976X, Vol. 50, Nro. 4, 2016, p. 407-413https://www.karger.com/Article/FullText/447270Higher fluorosis severity makes enamel less resistant to demineralizationHigher fluorosis severity makes enamel less resistant to demineralizationArtículo de revistahttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articlehttp://purl.org/coar/version/c_970fb48d4fbd8a85HypomineralizationDental caries resistanceDental enamelFluorotic teeth could either be more resistant or more susceptible to the caries process than sound ones due to their higher enamel fluoride concentration and higher porosity (subsurface hypomineralization), respectively; however, there is no consensus on this subject. In this study, a total of 49 human unerupted third molars presenting Thylstrup and Fejerskov (TF) fluorosis scores 0-4 were used. Two enamel slabs were obtained from each tooth. The rest of the tooth crown was powdered, and the enamel was separated from the dentine. In purified powdered enamel, the calcium (Ca), inorganic phosphate (Pi), and fluoride (F) concentrations were determined. The F concentration gradient throughout the enamel and in the enamel volume was determined in one slab. The other enamel slab was isolated with acid-resistant varnish, subjecting the exposed enamel surface half to a pH-cycling model to evaluate its demineralization resistance and to calculate the demineralization area. The nonexposed surface was used to determine the natural hypomineralization area found in fluorotic enamel and normalize the demineralization data. The hypomineralization and demineralization areas were assessed by cross-sectional microhardness. For statistical analyses, the data for TF1 and 2, and for TF3 and 4 were pooled. Concentrations of powered enamel Ca and Pi were not significantly different (p > 0.05) among groups TF0, TF1-2 and TF3-4, but a higher F concentration was found in fluorotic enamel (p < 0.05). Highly fluorotic teeth (TF3-4) presented a greater hypomineralization subsurface area and demonstrated lower demineralization resistance than sound enamel (p < 0.05). The findings suggest that a higher severity of fluorosis makes enamel less resistant to the caries process due to its greater subsurface mineral area exposed to demineralization and deeper acid diffusion through the enamel.Acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccessAcceso abierto2016-07-27ORIGINALMarín, Lina María.pdfMarín, Lina María.pdfapplication/pdf555814https://repositorio.unbosque.edu.co/bitstreams/b000f273-2761-443d-80b5-597f1379aa83/download9e171bb871e1cec272df92f5a21c04e7MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-81748https://repositorio.unbosque.edu.co/bitstreams/bca119aa-a042-45e1-b4bc-8b4c37512c37/download8a4605be74aa9ea9d79846c1fba20a33MD52THUMBNAILMarín, Lina María.pdf.jpgMarín, Lina María.pdf.jpgimage/jpeg5775https://repositorio.unbosque.edu.co/bitstreams/e95dd333-f7a1-4f52-ad95-5f91ffa1a9eb/download7210a811635d1799e7c05fee5d259be7MD53TEXTMarín, Lina María.pdf.txtMarín, Lina María.pdf.txtExtracted texttext/plain38127https://repositorio.unbosque.edu.co/bitstreams/5bafd7bf-0793-4c73-9541-6e4a7b56e83d/download66fa2c44410cdc446140789b0cee9c8dMD5420.500.12495/3643oai:repositorio.unbosque.edu.co:20.500.12495/36432024-02-07 04:46:15.539restrictedhttps://repositorio.unbosque.edu.coRepositorio Institucional Universidad El Bosquebibliotecas@biteca.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 |