Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais

Detalhes bibliográficos
Autor(a) principal: Iunes, Aline Garcia
Data de Publicação: 2010
Outros Autores: Iunes, Ariane Garcia, Kuga, Milton Carlos [UNESP], Campos, Edson Alves [UNESP], Tanomaru Filho, Mário [UNESP], Kuga, Gabriel Keine [UNESP]
Tipo de documento: Artigo
Idioma: por
Título da fonte: Repositório Institucional da UNESP
Texto Completo: http://revodonto.bvsalud.org/scielo.php?script=sci_arttext&pid=S1984-56852010000300005&lng=pt&nrm=iso&tlng=pt
http://hdl.handle.net/11449/125874
Resumo: The Portland cement has shown similar biological properties to calcium hydroxide, but its radiopacity is lower. Therefore, the addition of materials that minimize this deficiency should be considered. OBJECTIVE: To evaluate the apical sealing ability and pH of a white Portland cement added of several radiopacifying agents. MATERIAL AND METHODS: Forty bovine roots with incomplete apices were selected, and the foraminal openings were standardized to PM 720G bur. After the external root sealing, an apical intracanal barrier 10.0 mm thick was executed with the white Portland cement powder, pure or added of a radiopacifying agent (iodoform, zinc oxide or bismuth subnitrate), and distilled water (0.37 mL). The apical roots were immersed 24h in water in humid atmosphere, and after that they were immersed 24h in 2% Rhodamine B, under vacuum. In sequence, the roots were longitudinally sectioned, the root fragments were photographed, the images were digitalized and the apical infiltration was measured by the Image Tool program. The pH solutions were also evaluated, in 24h and 48h and 7 and 30 days. Data were submitted to Anova test. RESULTS: The zinc oxide solution has the lowest apical infiltration in relation to the other groups (p < 0.05). The pH behavior varied during the analysis, and in the period of 24h all groups showed the highest values (p < 0.05). CONCLUSION: The type of radiopacifying agent used interferes in the sealing ability of the apical barrier, and zinc oxide showed to be the most beneficial one. The pH varies according to the period of analysis, and the highest values were obtained in the first 24h (p < 0.05).
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spelling Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionaisEvaluation of sealing ability and pH of the apical barrier with Portland white cement added of conventional radiopacifying agentsMTAPortland cementIodoformZinc oxideBismuthMTACimento PortlandIodofórmioÓxido de zincoBismutoThe Portland cement has shown similar biological properties to calcium hydroxide, but its radiopacity is lower. Therefore, the addition of materials that minimize this deficiency should be considered. OBJECTIVE: To evaluate the apical sealing ability and pH of a white Portland cement added of several radiopacifying agents. MATERIAL AND METHODS: Forty bovine roots with incomplete apices were selected, and the foraminal openings were standardized to PM 720G bur. After the external root sealing, an apical intracanal barrier 10.0 mm thick was executed with the white Portland cement powder, pure or added of a radiopacifying agent (iodoform, zinc oxide or bismuth subnitrate), and distilled water (0.37 mL). The apical roots were immersed 24h in water in humid atmosphere, and after that they were immersed 24h in 2% Rhodamine B, under vacuum. In sequence, the roots were longitudinally sectioned, the root fragments were photographed, the images were digitalized and the apical infiltration was measured by the Image Tool program. The pH solutions were also evaluated, in 24h and 48h and 7 and 30 days. Data were submitted to Anova test. RESULTS: The zinc oxide solution has the lowest apical infiltration in relation to the other groups (p < 0.05). The pH behavior varied during the analysis, and in the period of 24h all groups showed the highest values (p < 0.05). CONCLUSION: The type of radiopacifying agent used interferes in the sealing ability of the apical barrier, and zinc oxide showed to be the most beneficial one. The pH varies according to the period of analysis, and the highest values were obtained in the first 24h (p < 0.05).O cimento Portland tem apresentado resultados biológicos similares aos do hidróxido de cálcio, porém sua radiopacidade é precária. Assim, a adição de substâncias que minimizem essa deficiência deve ser analisada. OBJETIVO: Procurou-se avaliar a capacidade de vedamento apical e pH de um tipo de cimento Portland branco, acrescido de diversos radiopacificadores encontrados no arsenal endodôntico. MATERIAL E MÉTODOS: Quarenta raízes de dentes bovinos, com ápices incompletos, tiveram as aberturas foraminais padronizadas de modo equivalente ao diâmetro da ponta da broca PM 720G. Após a impermeabilização externa radicular, um tampão apical intrarradicular, de aproximadamente 10,0 mm de espessura, foi executado com o pó do cimento Portland branco puro ou acrescido de um radiopacificador (iodofórmio, óxido de zinco ou subnitrato de bismuto), agregado a 0,37 mL de água destilada. As raízes foram mantidas por 24 horas em ambiente úmido e, após esse período, imersas em Rhodamine B, sob vácuo, por mais 24 horas. Concluída a imersão, os espécimes foram desgastados longitudinalmente, os fragmentos radiculares fotografados, as imagens digitalizadas e a infiltração apical foi medida por meio do programa Image Tools. Paralelamente, avaliou-se também o pH das associações nos períodos de 24 e 48 horas e 7 e 30 dias. Os dados obtidos foram submetidos ao teste de Anova a um critério. RESULTADOS: A associação com o óxido de zinco proporcionou menor infiltração em relação aos demais grupos (p < 0,05). O comportamento do pH dos materiais apresentou variações ao longo do tempo de análise, e no período de 24 horas sempre foram encontrados os maiores valores (p < 0,05). CONCLUSÃO: O tipo de radiopacificador interfere na capacidade de vedação apical, sendo o óxido de zinco o mais benéfico. O pH varia de acordo com o período de análise, e foram obtidos nas primeiras 24 horas os maiores valores (p < 0,05).Universidade Estadual Paulista Júlio de Mesquita Filho, Departamento de Odontologia Restauradora, Faculdade de Odontologia de Araraquara, Araraquara, Rua Humaitá nº 1680, Centro, CEP 14801-903, SP, BrasilUniversidade Estadual Paulista (Unesp)Iunes, Aline GarciaIunes, Ariane GarciaKuga, Milton Carlos [UNESP]Campos, Edson Alves [UNESP]Tanomaru Filho, Mário [UNESP]Kuga, Gabriel Keine [UNESP]2015-08-06T16:13:20Z2015-08-06T16:13:20Z2010info:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/article275-280http://revodonto.bvsalud.org/scielo.php?script=sci_arttext&pid=S1984-56852010000300005&lng=pt&nrm=iso&tlng=ptRSBO. Revista Sul-Brasileira de Odontologia, v. 7, n. 3, p. 275-280, 2010.1806-7727http://hdl.handle.net/11449/125874162756841981178826652112985847514566192900068248Currículo Lattesreponame:Repositório Institucional da UNESPinstname:Universidade Estadual Paulista (UNESP)instacron:UNESPporRSBO. Revista Sul-Brasileira de Odontologiainfo:eu-repo/semantics/openAccess2021-10-23T01:35:34Zoai:repositorio.unesp.br:11449/125874Repositório InstitucionalPUBhttp://repositorio.unesp.br/oai/requestopendoar:29462021-10-23T01:35:34Repositório Institucional da UNESP - Universidade Estadual Paulista (UNESP)false
dc.title.none.fl_str_mv Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
Evaluation of sealing ability and pH of the apical barrier with Portland white cement added of conventional radiopacifying agents
title Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
spellingShingle Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
Iunes, Aline Garcia
MTA
Portland cement
Iodoform
Zinc oxide
Bismuth
MTA
Cimento Portland
Iodofórmio
Óxido de zinco
Bismuto
title_short Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
title_full Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
title_fullStr Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
title_full_unstemmed Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
title_sort Avaliação da capacidade de vedamento e pH do tampão apical com cimento Portland branco acrescido de radiopacificadores convencionais
author Iunes, Aline Garcia
author_facet Iunes, Aline Garcia
Iunes, Ariane Garcia
Kuga, Milton Carlos [UNESP]
Campos, Edson Alves [UNESP]
Tanomaru Filho, Mário [UNESP]
Kuga, Gabriel Keine [UNESP]
author_role author
author2 Iunes, Ariane Garcia
Kuga, Milton Carlos [UNESP]
Campos, Edson Alves [UNESP]
Tanomaru Filho, Mário [UNESP]
Kuga, Gabriel Keine [UNESP]
author2_role author
author
author
author
author
dc.contributor.none.fl_str_mv Universidade Estadual Paulista (Unesp)
dc.contributor.author.fl_str_mv Iunes, Aline Garcia
Iunes, Ariane Garcia
Kuga, Milton Carlos [UNESP]
Campos, Edson Alves [UNESP]
Tanomaru Filho, Mário [UNESP]
Kuga, Gabriel Keine [UNESP]
dc.subject.por.fl_str_mv MTA
Portland cement
Iodoform
Zinc oxide
Bismuth
MTA
Cimento Portland
Iodofórmio
Óxido de zinco
Bismuto
topic MTA
Portland cement
Iodoform
Zinc oxide
Bismuth
MTA
Cimento Portland
Iodofórmio
Óxido de zinco
Bismuto
description The Portland cement has shown similar biological properties to calcium hydroxide, but its radiopacity is lower. Therefore, the addition of materials that minimize this deficiency should be considered. OBJECTIVE: To evaluate the apical sealing ability and pH of a white Portland cement added of several radiopacifying agents. MATERIAL AND METHODS: Forty bovine roots with incomplete apices were selected, and the foraminal openings were standardized to PM 720G bur. After the external root sealing, an apical intracanal barrier 10.0 mm thick was executed with the white Portland cement powder, pure or added of a radiopacifying agent (iodoform, zinc oxide or bismuth subnitrate), and distilled water (0.37 mL). The apical roots were immersed 24h in water in humid atmosphere, and after that they were immersed 24h in 2% Rhodamine B, under vacuum. In sequence, the roots were longitudinally sectioned, the root fragments were photographed, the images were digitalized and the apical infiltration was measured by the Image Tool program. The pH solutions were also evaluated, in 24h and 48h and 7 and 30 days. Data were submitted to Anova test. RESULTS: The zinc oxide solution has the lowest apical infiltration in relation to the other groups (p < 0.05). The pH behavior varied during the analysis, and in the period of 24h all groups showed the highest values (p < 0.05). CONCLUSION: The type of radiopacifying agent used interferes in the sealing ability of the apical barrier, and zinc oxide showed to be the most beneficial one. The pH varies according to the period of analysis, and the highest values were obtained in the first 24h (p < 0.05).
publishDate 2010
dc.date.none.fl_str_mv 2010
2015-08-06T16:13:20Z
2015-08-06T16:13:20Z
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://revodonto.bvsalud.org/scielo.php?script=sci_arttext&pid=S1984-56852010000300005&lng=pt&nrm=iso&tlng=pt
RSBO. Revista Sul-Brasileira de Odontologia, v. 7, n. 3, p. 275-280, 2010.
1806-7727
http://hdl.handle.net/11449/125874
1627568419811788
2665211298584751
4566192900068248
url http://revodonto.bvsalud.org/scielo.php?script=sci_arttext&pid=S1984-56852010000300005&lng=pt&nrm=iso&tlng=pt
http://hdl.handle.net/11449/125874
identifier_str_mv RSBO. Revista Sul-Brasileira de Odontologia, v. 7, n. 3, p. 275-280, 2010.
1806-7727
1627568419811788
2665211298584751
4566192900068248
dc.language.iso.fl_str_mv por
language por
dc.relation.none.fl_str_mv RSBO. Revista Sul-Brasileira de Odontologia
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv 275-280
dc.source.none.fl_str_mv Currículo Lattes
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
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