Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland
Autor(a) principal: | |
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Data de Publicação: | 2011 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da USC |
Texto Completo: | http://localhost:8080/tede/handle/tede/130 |
Resumo: | To evaluate the interference of the association of different radiopacifier agents (bismuth oxide, bismuth carbonate, zirconium oxide and bismuth subnitrate) on solubility, in the pH and antimicrobial activity of Portland cement. The ratio of the materials was in volume, at a ratio of 4 parts of Portland cement and 1 part of radiopacifiers. The analysis of the solubility complied with ADA's standards n.57. In the analysis of pH, the materials were placed in acrylic teeth with retrograde cavities, and immersed in vial containing Milli Q Water and at the end of 3, 24, 72 and 168 hours of manipulation, the teeth were removed to another vial and the water in which they were immersed the pH was measured with a pHmeter. To analyze the antimicrobial action the radial diffusion test was performed using microorganisms: Staphylococcus aureus (ATCC 25923), Pseudomonas aeruginosa (ATCC 27853), Enterococcus faecalis (ATCC 29212) and Candida albicans (ATCC 10231). The analysis of the presence and size of the antimicrobial active zones was performed 24 hours after the inoculation of microorganisms and the placing of materials in the pits. In the solubility, the adding of bismuth subnitrate and bismuth carbonate conferred greater solubility to Portland cement, raising levels above the maximum recommended by the ADA s standard which is 3%. The results showed for the pH, that all the materials alkalinized the mean which, in the 3 hours analysis the bismuth subnitrate favored significantly a lower pH than the pure Portland cement. However, in the 24 and 72 hours analysis the adding of bismuth subnitrate gave higher pH values, but without differentiating the pure Portland cement. By at the end of 7 days the materials showed similarity in pH values. In the analysis of the antimicrobial action, all materials showed action against to Candida albicans, and the largest antimicrobial active zones was when it was added the zirconium oxide, which differed statistically (P <0.05) from other materials. Regarding other organisms, none of the materials tested showed antimicrobial action. The overall radiopacifiers did not interfere in the pH and antimicrobial action of Portland cement and the bismuth carbonate and bismuth subnitrate made the material more soluble. |
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Weckwerth, Paulo HenriqueCPF:13728320846http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4700237E1CPF:13728320846http://lattes.cnpq.br/6576355403534318Machado, Adriano Cosme de Oliveira2015-09-14T13:12:47Z2012-03-272011-09-28MACHADO, Adriano Cosme de Oliveira. AGENT OF INFLUENCE IN RADIOPACIFICIER SOLUBILITY IN pH AND ANTIMICROBIAL ACTION PORTLAND CEMENT. 2011. 53 f. Tese (Doutorado em Biologia Oral) - IASCJ - Universidade Sagrado Coração, Bauru, 2011.http://localhost:8080/tede/handle/tede/130To evaluate the interference of the association of different radiopacifier agents (bismuth oxide, bismuth carbonate, zirconium oxide and bismuth subnitrate) on solubility, in the pH and antimicrobial activity of Portland cement. The ratio of the materials was in volume, at a ratio of 4 parts of Portland cement and 1 part of radiopacifiers. The analysis of the solubility complied with ADA's standards n.57. In the analysis of pH, the materials were placed in acrylic teeth with retrograde cavities, and immersed in vial containing Milli Q Water and at the end of 3, 24, 72 and 168 hours of manipulation, the teeth were removed to another vial and the water in which they were immersed the pH was measured with a pHmeter. To analyze the antimicrobial action the radial diffusion test was performed using microorganisms: Staphylococcus aureus (ATCC 25923), Pseudomonas aeruginosa (ATCC 27853), Enterococcus faecalis (ATCC 29212) and Candida albicans (ATCC 10231). The analysis of the presence and size of the antimicrobial active zones was performed 24 hours after the inoculation of microorganisms and the placing of materials in the pits. In the solubility, the adding of bismuth subnitrate and bismuth carbonate conferred greater solubility to Portland cement, raising levels above the maximum recommended by the ADA s standard which is 3%. The results showed for the pH, that all the materials alkalinized the mean which, in the 3 hours analysis the bismuth subnitrate favored significantly a lower pH than the pure Portland cement. However, in the 24 and 72 hours analysis the adding of bismuth subnitrate gave higher pH values, but without differentiating the pure Portland cement. By at the end of 7 days the materials showed similarity in pH values. In the analysis of the antimicrobial action, all materials showed action against to Candida albicans, and the largest antimicrobial active zones was when it was added the zirconium oxide, which differed statistically (P <0.05) from other materials. Regarding other organisms, none of the materials tested showed antimicrobial action. The overall radiopacifiers did not interfere in the pH and antimicrobial action of Portland cement and the bismuth carbonate and bismuth subnitrate made the material more soluble.Avaliar a interferência de diferentes agentes radiopacificadores (óxido de bismuto, carbonato de bismuto, óxido de zircônio e subnitrato de bismuto) na solubilidade, no pH e ação antimicrobiana do cimento Portland. A proporção dos materiais foi em volume, na razão de 4 partes do cimento Portland para 1 parte do radiopacificador. Para análise da solubilidade, foi seguida as normas da ADA n.57. Na análise do pH os materiais foram colocados em dentes de acrílico com cavidade retrógradas e imediatamente imersos individualmente em frascos contendo água deionizada e ao final de 3, 24, 72 e 168 horas da manipulação os dentes eram trocados de frasco e a água que estavam imersos era medido pH com auxílio de pHmetro. Para análise da ação antimicrobiana foi empregado o teste da difusão radial utilizando os microrganismos: Staphylococcus aureus (ATCC 25923), Pseudomonas aeruginosas (ATCC 27853), Enterococcus faecalis (ATCC 29212) e Candida albicans (ATCC 10231). A análise de presença de zona de inibição e tamanho dos halos foi realizado 24 horas após a inoculação dos microrganismos e colocação dos materiais nos poços. Na solubilidade o acréscimo de subnitrato de bismuto e carbonato de bismuto conferiu maior solubilidade ao cimento Portland, elevando os níveis acima do máximo recomendado pela norma da ADA que é de 3%. Os resultados mostraram para o pH, todos os materiais alcalinizaram o meio, sendo que, na análise 3 h o subnitrato de bismuto favoreceu significantemente menor pH que o cimento Portland puro. Porém na análise de 24 e 72 horas o acréscimo de subnitrato de bismuto conferiu maiores valores de pH, porém sem se diferenciar do cimento Portland puro. Ao final de 7 dias os materiais apresentaram similaridade nos valores de pH. Na análise da ação antimicrobiana, todos os materiais apresentaram ação frente à Candida albicans, sendo que o maior halo foi quando se acresceu o óxido de zircônio, que se diferenciou estatisticamente (P<0,05) dos demais materiais. Em relação aos demais microrganismos, nenhum dos materiais testados apresentou ação antimicrobiana. Os radiopacificadores no geral não interferiram no pH e ação antimicrobiana do cimento Portland e o carbonato de bismuto e subnitrato de bismuto tornaram o material mais solúvel.Made available in DSpace on 2015-09-14T13:12:47Z (GMT). No. of bitstreams: 1 tese_adriano_cosme_oliveira_machado.pdf: 440686 bytes, checksum: 8d9413bb34e864124328059e9db05ddc (MD5) Previous issue date: 2011-09-28application/pdfporIASCJ - Universidade Sagrado CoraçãoBiologia OralUSCBRCiências da Saúde e BiológicaspHAÇÃO ANTIMICROBIANACIMENTO PORTLANDRADIOPACIFICADORESpHANTIMICROBIAL ACTIONPORTLAND CEMENTRADIOPACIFIERSCIENCIAS DA SAUDE::ODONTOLOGIAInfluência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento PortlandAGENT OF INFLUENCE IN RADIOPACIFICIER SOLUBILITY IN pH AND ANTIMICROBIAL ACTION PORTLAND CEMENTinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesis8043334104093724546600600600-753428887677182963-2070498469879244349info:eu-repo/semantics/openAccessreponame:Biblioteca Digital de Teses e Dissertações da USCinstname:Universidade do Sagrado Coração (USC)instacron:USCORIGINALtese_adriano_cosme_oliveira_machado.pdfapplication/pdf440686http://localhost:8080/tede/bitstream/tede/130/1/tese_adriano_cosme_oliveira_machado.pdf8d9413bb34e864124328059e9db05ddcMD51tede/1302015-10-16 14:47:40.286oai:localhost:tede/130Biblioteca Digital de Teses e Dissertaçõeshttps://tede2.usc.br:8443/http://tede2.usc.br:8080/oai/requestbiblicorjesu@unisagrado.edu.br||normalizacao@usc.bropendoar:2015-10-16T17:47:40Biblioteca Digital de Teses e Dissertações da USC - Universidade do Sagrado Coração (USC)false |
dc.title.por.fl_str_mv |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland |
dc.title.alternative.eng.fl_str_mv |
AGENT OF INFLUENCE IN RADIOPACIFICIER SOLUBILITY IN pH AND ANTIMICROBIAL ACTION PORTLAND CEMENT |
title |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland |
spellingShingle |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland Machado, Adriano Cosme de Oliveira pH AÇÃO ANTIMICROBIANA CIMENTO PORTLAND RADIOPACIFICADORES pH ANTIMICROBIAL ACTION PORTLAND CEMENT RADIOPACIFIERS CIENCIAS DA SAUDE::ODONTOLOGIA |
title_short |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland |
title_full |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland |
title_fullStr |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland |
title_full_unstemmed |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland |
title_sort |
Influência do agente radiopacificador na solubilidade, no pH e na ação antimicrobiana do cimento Portland |
author |
Machado, Adriano Cosme de Oliveira |
author_facet |
Machado, Adriano Cosme de Oliveira |
author_role |
author |
dc.contributor.advisor1.fl_str_mv |
Weckwerth, Paulo Henrique |
dc.contributor.advisor1ID.fl_str_mv |
CPF:13728320846 |
dc.contributor.advisor1Lattes.fl_str_mv |
http://buscatextual.cnpq.br/buscatextual/visualizacv.do?id=K4700237E1 |
dc.contributor.authorID.fl_str_mv |
CPF:13728320846 |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/6576355403534318 |
dc.contributor.author.fl_str_mv |
Machado, Adriano Cosme de Oliveira |
contributor_str_mv |
Weckwerth, Paulo Henrique |
dc.subject.por.fl_str_mv |
pH AÇÃO ANTIMICROBIANA CIMENTO PORTLAND RADIOPACIFICADORES |
topic |
pH AÇÃO ANTIMICROBIANA CIMENTO PORTLAND RADIOPACIFICADORES pH ANTIMICROBIAL ACTION PORTLAND CEMENT RADIOPACIFIERS CIENCIAS DA SAUDE::ODONTOLOGIA |
dc.subject.eng.fl_str_mv |
pH ANTIMICROBIAL ACTION PORTLAND CEMENT RADIOPACIFIERS |
dc.subject.cnpq.fl_str_mv |
CIENCIAS DA SAUDE::ODONTOLOGIA |
description |
To evaluate the interference of the association of different radiopacifier agents (bismuth oxide, bismuth carbonate, zirconium oxide and bismuth subnitrate) on solubility, in the pH and antimicrobial activity of Portland cement. The ratio of the materials was in volume, at a ratio of 4 parts of Portland cement and 1 part of radiopacifiers. The analysis of the solubility complied with ADA's standards n.57. In the analysis of pH, the materials were placed in acrylic teeth with retrograde cavities, and immersed in vial containing Milli Q Water and at the end of 3, 24, 72 and 168 hours of manipulation, the teeth were removed to another vial and the water in which they were immersed the pH was measured with a pHmeter. To analyze the antimicrobial action the radial diffusion test was performed using microorganisms: Staphylococcus aureus (ATCC 25923), Pseudomonas aeruginosa (ATCC 27853), Enterococcus faecalis (ATCC 29212) and Candida albicans (ATCC 10231). The analysis of the presence and size of the antimicrobial active zones was performed 24 hours after the inoculation of microorganisms and the placing of materials in the pits. In the solubility, the adding of bismuth subnitrate and bismuth carbonate conferred greater solubility to Portland cement, raising levels above the maximum recommended by the ADA s standard which is 3%. The results showed for the pH, that all the materials alkalinized the mean which, in the 3 hours analysis the bismuth subnitrate favored significantly a lower pH than the pure Portland cement. However, in the 24 and 72 hours analysis the adding of bismuth subnitrate gave higher pH values, but without differentiating the pure Portland cement. By at the end of 7 days the materials showed similarity in pH values. In the analysis of the antimicrobial action, all materials showed action against to Candida albicans, and the largest antimicrobial active zones was when it was added the zirconium oxide, which differed statistically (P <0.05) from other materials. Regarding other organisms, none of the materials tested showed antimicrobial action. The overall radiopacifiers did not interfere in the pH and antimicrobial action of Portland cement and the bismuth carbonate and bismuth subnitrate made the material more soluble. |
publishDate |
2011 |
dc.date.issued.fl_str_mv |
2011-09-28 |
dc.date.available.fl_str_mv |
2012-03-27 |
dc.date.accessioned.fl_str_mv |
2015-09-14T13:12:47Z |
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info:eu-repo/semantics/publishedVersion |
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info:eu-repo/semantics/doctoralThesis |
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doctoralThesis |
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publishedVersion |
dc.identifier.citation.fl_str_mv |
MACHADO, Adriano Cosme de Oliveira. AGENT OF INFLUENCE IN RADIOPACIFICIER SOLUBILITY IN pH AND ANTIMICROBIAL ACTION PORTLAND CEMENT. 2011. 53 f. Tese (Doutorado em Biologia Oral) - IASCJ - Universidade Sagrado Coração, Bauru, 2011. |
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http://localhost:8080/tede/handle/tede/130 |
identifier_str_mv |
MACHADO, Adriano Cosme de Oliveira. AGENT OF INFLUENCE IN RADIOPACIFICIER SOLUBILITY IN pH AND ANTIMICROBIAL ACTION PORTLAND CEMENT. 2011. 53 f. Tese (Doutorado em Biologia Oral) - IASCJ - Universidade Sagrado Coração, Bauru, 2011. |
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BR |
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