Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Dissertação |
Idioma: | por |
Título da fonte: | Repositório Institucional da UFS |
Texto Completo: | https://ri.ufs.br/handle/riufs/5904 |
Resumo: | Introduction: The radiopacity is a required property in all dental materials. This characteristic allows this materials be able to be distinguished from the tooth surfaces through the radiography. Portland cement (PC) presents physico-chemical and biological properties similar to mineral trioxide aggregate (MTA), except for radiopacifier. Objective: To evaluate the radiopacity, antimicrobial activity and pH of the MTA, pure PC and PC added different radiopacifiers. Materials and Methods: The radiopacity of MTA, pure PC and PC added the radiopacifying: iodoform, lead oxide, zirconium oxide, bismuth subnitrate, barium sulfate and bismuth oxide in the proportions 15%, 20% and 30% were analyzed. The radiopacity was carried out using a semi-direct digital radiography system (Instrumentarium Kavo EXPRESS®). The PC and cements selected with adequate radiopacity (ANSI/ADA No. 57) were evaluated for their antimicrobial activity and pH. Antimicrobial activity was analyzed by microdilution tests and agar diffusion. The microorganism tested were Enterococcus faecalis, as a standard strain (ATCC 29212) and six clinical strains (LMA 26, LMA 27, LMA 28, LMA 29, LMA 31 and LMA 34). The pH was measured using a digital pH meter (pH Meter Pocket-sized). Statistical analyzes were performed using the Shapiro-Wilk normality test, ANOVA and Tukey with significance level of 5%. Results: Pure PC had the lowest radiopacity. The MTA, PC + iodoform 20% (3.59 mmEq.Al), PC + bismuth oxide 20% (4.79 mmEq.Al), PC + bismuth subnitrate 20% (3.12 mmEq.Al), PC + 20% lead oxide (3.18 mmEq.Al) and PC + 30% zirconium oxide (4.28 mmEq.Al). Regarding the agar diffusion test, the LMA 26 strain was inhibited by PC, PC + Iodoform 20%, PC + 30% Zirconium Oxide, PC + Bismuth subnitrate 20%, and PC + Bismuth Oxide 20%. The LMA 31 strain was inhibited by PC + zirconium oxide 30% and PC + bismuth subnitrate 20% and LMA 27 strain was inhibited by PC + bismuth subnitrate 20%. The other strains were not inhibited. In the microdilution test, most strains was inhibited by tested materials, except the ATCC 29212 strain which was not inhibited by PC + lead oxide 20%. LMA 28 29, 31 and 34 strains were not inhibited by PC + lead oxide 20%and PC + zirconium oxide 30%, in which LMA 28 and 29 strains were not inhibited by PC + bismuth oxide20%. All cements tested showed alkalinity in all experimental periods, in which MTA had the lowest pH. Conclusions: MTA and PC added the radiopacifiers subnitrate bismuth and iodoform in concentrations of 20% by weight, provided satisfactory radiopacity, alkaline medium and promoted bactericidal and bacteriostatic activities against strains of E .faecalis tested. |
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Lima, Marta Judite NunesTakeshita, Wilton MitsunariBarbosa Júnior, Antônio Márciohttp://lattes.cnpq.br/75322948597989632017-09-27T13:50:43Z2017-09-27T13:50:43Z2016-02-26LIMA, Marta Judite Nunes. Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores. 2016. 97 f. Dissertação (Pós-Graduação em Odontologia) - Universidade Federal de Sergipe, São Cristóvão, SE, 2016.https://ri.ufs.br/handle/riufs/5904Introduction: The radiopacity is a required property in all dental materials. This characteristic allows this materials be able to be distinguished from the tooth surfaces through the radiography. Portland cement (PC) presents physico-chemical and biological properties similar to mineral trioxide aggregate (MTA), except for radiopacifier. Objective: To evaluate the radiopacity, antimicrobial activity and pH of the MTA, pure PC and PC added different radiopacifiers. Materials and Methods: The radiopacity of MTA, pure PC and PC added the radiopacifying: iodoform, lead oxide, zirconium oxide, bismuth subnitrate, barium sulfate and bismuth oxide in the proportions 15%, 20% and 30% were analyzed. The radiopacity was carried out using a semi-direct digital radiography system (Instrumentarium Kavo EXPRESS®). The PC and cements selected with adequate radiopacity (ANSI/ADA No. 57) were evaluated for their antimicrobial activity and pH. Antimicrobial activity was analyzed by microdilution tests and agar diffusion. The microorganism tested were Enterococcus faecalis, as a standard strain (ATCC 29212) and six clinical strains (LMA 26, LMA 27, LMA 28, LMA 29, LMA 31 and LMA 34). The pH was measured using a digital pH meter (pH Meter Pocket-sized). Statistical analyzes were performed using the Shapiro-Wilk normality test, ANOVA and Tukey with significance level of 5%. Results: Pure PC had the lowest radiopacity. The MTA, PC + iodoform 20% (3.59 mmEq.Al), PC + bismuth oxide 20% (4.79 mmEq.Al), PC + bismuth subnitrate 20% (3.12 mmEq.Al), PC + 20% lead oxide (3.18 mmEq.Al) and PC + 30% zirconium oxide (4.28 mmEq.Al). Regarding the agar diffusion test, the LMA 26 strain was inhibited by PC, PC + Iodoform 20%, PC + 30% Zirconium Oxide, PC + Bismuth subnitrate 20%, and PC + Bismuth Oxide 20%. The LMA 31 strain was inhibited by PC + zirconium oxide 30% and PC + bismuth subnitrate 20% and LMA 27 strain was inhibited by PC + bismuth subnitrate 20%. The other strains were not inhibited. In the microdilution test, most strains was inhibited by tested materials, except the ATCC 29212 strain which was not inhibited by PC + lead oxide 20%. LMA 28 29, 31 and 34 strains were not inhibited by PC + lead oxide 20%and PC + zirconium oxide 30%, in which LMA 28 and 29 strains were not inhibited by PC + bismuth oxide20%. All cements tested showed alkalinity in all experimental periods, in which MTA had the lowest pH. Conclusions: MTA and PC added the radiopacifiers subnitrate bismuth and iodoform in concentrations of 20% by weight, provided satisfactory radiopacity, alkaline medium and promoted bactericidal and bacteriostatic activities against strains of E .faecalis tested.Introdução: A radiopacidade é uma propriedade obrigatória em todos os materiais odontológicos. Esta característica permite este material seja distinguido das superfícies dentárias através da radiografia. O cimento Portland (CP) apresenta propriedades físicoquímicas e biológicas semelhantes ao Agregado Trióxido Mineral (MTA), exceto pela partícula radiopacificadora. Objetivo: Avaliar a radiopacidade, atividade antimicrobiana e pH do MTA, CP puro e CP adicionado de diferentes radiopacificadores. Materiais e Métodos: Foi analisada a radiopacidade do MTA, CP e CP adicionado dos radiopacificadores: iodofórmio, óxido de chumbo, óxido de zircônio, subnitrato de bismuto, sulfato de bário e óxido de bismuto nas proporções 15%, 20% e 30%. A radiopacidade foi avaliada por meio do sistema de radiografia digital semi-direto (Instrumentarium Kavo EXPRESS®). O CP e os cimentos selecionados com radiopacidade adequada (ANSI/ADA nº 57) foram submetidos à avaliação da atividade antimicrobiana e do pH. A atividade antimicrobiana foi analisada pelos testes de microdiluição e difusão em ágar. O micro-organismo testado foi o Enterococcus faecalis, sendo uma cepa padrão (ATCC 29212) e seis cepas clínicas (LMA 26, LMA 27, LMA 28, LMA 29, LMA 31 e LMA 34). O pH foi aferido com pHmetro digital (pH Meter Pocket-sized). Os testes estatísticos utilizados foram os testes Shapiro-Wilk de normalidade, análise de variância ANOVA e Tukey a nível de significância de 5%. Resultados: O CP puro apresentou o menor valor de radiopacidade, O MTA, CP + iodofórmio 20% (3,59 mmEq.Al), CP + óxido de bismuto 20% (4,79 mmEq.Al), CP + subnitrato de bismuto 20% (3,12 mmEq.Al), CP + óxido de chumbo 20% (3,18 mmEq.Al) e CP + óxido de zircônio 30% (4,28 mmEq.Al). No teste de difusão em ágar, a cepa LMA 26 foi inibida pelo CP, CP + Iodofórmio 20%, CP + Óxido de Zircônio 30%, CP + Subnitrato de Bismuto 20% e CP + Óxido de Bismuto 20%. A cepa LMA 31 foi inibida pelas associações CP + óxido de zircônio 30% e CP + subnitrato de bismuto 20% e a cepa LMA 27 foi inibida pelo CP + subnitrato de bismuto 20%. As demais cepas não foram inibidas. No teste de microdiluição, a maioria das cepas foi inibida pelos materiais-testes, exceto a cepa ATCC 29212 que não foi inibida pelo CP + óxido de chumbo 20%, as cepas LMA 28, 29, 31 e 34 não foram inibidas pelas associações CP + óxido de chumbo 20% e CP + óxido de zircônio 30%, sendo que as cepas LMA 28 e 29 também não foram inibidas pelo CP + óxido de bismuto 20%. Todos os cimentos testados apresentaram alcalinidade em todos os períodos experimentais, sendo que o MTA apresentou os menores valores de pH. Conclusões: O MTA e as concentrações de CP adicionado de 20% do agente radiopacificador subnitrato de bismuto e CP adicionado do agente radiopacificador iodofórmio, 20% em peso, proporcionaram radiopacidade satisfatória, alcalinizaram o meio e promoveram atividades bactericida e bacteriostática contra as cepas de E. faecalis testadas.application/pdfporUniversidade Federal de SergipePós-Graduação em OdontologiaUFSBrasilOdontologiaMateriais biomédicosTestes de sensibilidade bacterianaMateriais dentáriosDentes - radiografiaRadiografia digitalMateriais biocompatíveisPHTestes de sensibilidade microbianaMicrobial susceptibility testingDigital radiographyBiocompatible materialsCIENCIAS DA SAUDE::ODONTOLOGIAAvaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadoresinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/masterThesisinfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFSinstname:Universidade Federal de Sergipe (UFS)instacron:UFSORIGINALMARTA_JUDITE_NUNES_LIMA.pdfapplication/pdf2244539https://ri.ufs.br/jspui/bitstream/riufs/5904/1/MARTA_JUDITE_NUNES_LIMA.pdf90bad094f795fadfc53392b791d16147MD51TEXTMARTA_JUDITE_NUNES_LIMA.pdf.txtMARTA_JUDITE_NUNES_LIMA.pdf.txtExtracted texttext/plain166948https://ri.ufs.br/jspui/bitstream/riufs/5904/2/MARTA_JUDITE_NUNES_LIMA.pdf.txtafd6cac4cf7f9fac545658789cad9e0aMD52THUMBNAILMARTA_JUDITE_NUNES_LIMA.pdf.jpgMARTA_JUDITE_NUNES_LIMA.pdf.jpgGenerated Thumbnailimage/jpeg1222https://ri.ufs.br/jspui/bitstream/riufs/5904/3/MARTA_JUDITE_NUNES_LIMA.pdf.jpge77838ebbbb178f3e2f5412b530f1f16MD53riufs/59042017-12-21 21:40:36.315oai:ufs.br:riufs/5904Repositório InstitucionalPUBhttps://ri.ufs.br/oai/requestrepositorio@academico.ufs.bropendoar:2017-12-22T00:40:36Repositório Institucional da UFS - Universidade Federal de Sergipe (UFS)false |
dc.title.por.fl_str_mv |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores |
title |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores |
spellingShingle |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores Lima, Marta Judite Nunes Odontologia Materiais biomédicos Testes de sensibilidade bacteriana Materiais dentários Dentes - radiografia Radiografia digital Materiais biocompatíveis PH Testes de sensibilidade microbiana Microbial susceptibility testing Digital radiography Biocompatible materials CIENCIAS DA SAUDE::ODONTOLOGIA |
title_short |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores |
title_full |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores |
title_fullStr |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores |
title_full_unstemmed |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores |
title_sort |
Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores |
author |
Lima, Marta Judite Nunes |
author_facet |
Lima, Marta Judite Nunes |
author_role |
author |
dc.contributor.author.fl_str_mv |
Lima, Marta Judite Nunes |
dc.contributor.advisor1.fl_str_mv |
Takeshita, Wilton Mitsunari |
dc.contributor.advisor-co1.fl_str_mv |
Barbosa Júnior, Antônio Márcio |
dc.contributor.authorLattes.fl_str_mv |
http://lattes.cnpq.br/7532294859798963 |
contributor_str_mv |
Takeshita, Wilton Mitsunari Barbosa Júnior, Antônio Márcio |
dc.subject.por.fl_str_mv |
Odontologia Materiais biomédicos Testes de sensibilidade bacteriana Materiais dentários Dentes - radiografia Radiografia digital Materiais biocompatíveis PH Testes de sensibilidade microbiana Microbial susceptibility testing |
topic |
Odontologia Materiais biomédicos Testes de sensibilidade bacteriana Materiais dentários Dentes - radiografia Radiografia digital Materiais biocompatíveis PH Testes de sensibilidade microbiana Microbial susceptibility testing Digital radiography Biocompatible materials CIENCIAS DA SAUDE::ODONTOLOGIA |
dc.subject.eng.fl_str_mv |
Digital radiography Biocompatible materials |
dc.subject.cnpq.fl_str_mv |
CIENCIAS DA SAUDE::ODONTOLOGIA |
description |
Introduction: The radiopacity is a required property in all dental materials. This characteristic allows this materials be able to be distinguished from the tooth surfaces through the radiography. Portland cement (PC) presents physico-chemical and biological properties similar to mineral trioxide aggregate (MTA), except for radiopacifier. Objective: To evaluate the radiopacity, antimicrobial activity and pH of the MTA, pure PC and PC added different radiopacifiers. Materials and Methods: The radiopacity of MTA, pure PC and PC added the radiopacifying: iodoform, lead oxide, zirconium oxide, bismuth subnitrate, barium sulfate and bismuth oxide in the proportions 15%, 20% and 30% were analyzed. The radiopacity was carried out using a semi-direct digital radiography system (Instrumentarium Kavo EXPRESS®). The PC and cements selected with adequate radiopacity (ANSI/ADA No. 57) were evaluated for their antimicrobial activity and pH. Antimicrobial activity was analyzed by microdilution tests and agar diffusion. The microorganism tested were Enterococcus faecalis, as a standard strain (ATCC 29212) and six clinical strains (LMA 26, LMA 27, LMA 28, LMA 29, LMA 31 and LMA 34). The pH was measured using a digital pH meter (pH Meter Pocket-sized). Statistical analyzes were performed using the Shapiro-Wilk normality test, ANOVA and Tukey with significance level of 5%. Results: Pure PC had the lowest radiopacity. The MTA, PC + iodoform 20% (3.59 mmEq.Al), PC + bismuth oxide 20% (4.79 mmEq.Al), PC + bismuth subnitrate 20% (3.12 mmEq.Al), PC + 20% lead oxide (3.18 mmEq.Al) and PC + 30% zirconium oxide (4.28 mmEq.Al). Regarding the agar diffusion test, the LMA 26 strain was inhibited by PC, PC + Iodoform 20%, PC + 30% Zirconium Oxide, PC + Bismuth subnitrate 20%, and PC + Bismuth Oxide 20%. The LMA 31 strain was inhibited by PC + zirconium oxide 30% and PC + bismuth subnitrate 20% and LMA 27 strain was inhibited by PC + bismuth subnitrate 20%. The other strains were not inhibited. In the microdilution test, most strains was inhibited by tested materials, except the ATCC 29212 strain which was not inhibited by PC + lead oxide 20%. LMA 28 29, 31 and 34 strains were not inhibited by PC + lead oxide 20%and PC + zirconium oxide 30%, in which LMA 28 and 29 strains were not inhibited by PC + bismuth oxide20%. All cements tested showed alkalinity in all experimental periods, in which MTA had the lowest pH. Conclusions: MTA and PC added the radiopacifiers subnitrate bismuth and iodoform in concentrations of 20% by weight, provided satisfactory radiopacity, alkaline medium and promoted bactericidal and bacteriostatic activities against strains of E .faecalis tested. |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-02-26 |
dc.date.accessioned.fl_str_mv |
2017-09-27T13:50:43Z |
dc.date.available.fl_str_mv |
2017-09-27T13:50:43Z |
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info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/masterThesis |
format |
masterThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
LIMA, Marta Judite Nunes. Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores. 2016. 97 f. Dissertação (Pós-Graduação em Odontologia) - Universidade Federal de Sergipe, São Cristóvão, SE, 2016. |
dc.identifier.uri.fl_str_mv |
https://ri.ufs.br/handle/riufs/5904 |
identifier_str_mv |
LIMA, Marta Judite Nunes. Avaliação da radiopacidade, do pH e da atividade antimicrobiana do MTA, do cimento Portland puro e do cimento Portland adicionado de agentes radiopacificadores. 2016. 97 f. Dissertação (Pós-Graduação em Odontologia) - Universidade Federal de Sergipe, São Cristóvão, SE, 2016. |
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https://ri.ufs.br/handle/riufs/5904 |
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Universidade Federal de Sergipe |
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Pós-Graduação em Odontologia |
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UFS |
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Brasil |
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Universidade Federal de Sergipe |
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