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Microbial microleakage in temporary restorative materials after post space preparation / Infiltração microbiana em materiais restauradores temporários após preparo para retentores intrarradiculares
Veloso, Heloisa Helena; Estrela, Cyntia Rodrigues Araújo; Decurcio, Daniel Almeida; Alves, Diógenes; Estrela, Carlos.
  • Veloso, Heloisa Helena; Federal University of Paraíba. Department of Endodontics. João Pessoa. BR
  • Estrela, Cyntia Rodrigues Araújo; Public Health Office of the State of Goiás. Goiânia. BR
  • Decurcio, Daniel Almeida; Federal University of Goiás. Department of Endodontics. Goiânia. BR
  • Alves, Diógenes; University of Pernambuco. Department of Endodontics. Camaragibe. BR
  • Estrela, Carlos; Federal University of Goiás. Department of Endodontics. Goiânia. BR
Rev. odonto ciênc ; 23(2): 187-191, abr.-jun. 2008. ilus, tab
Article in Portuguese | LILACS, BBO | ID: biblio-873593
ABSTRACT
Purpose: This study investigated the microbial microleakage through temporary restorative materials (Coltosol, IRM, Vidrion R) after post space preparation.Methods: Forty-two maxillary anterior human teeth were prepared and obturated with guttapercha and Sealapex using the lateral condensation technique, with 4mm of apical obturation remaining. Calcium hydroxide paste was used to fill the post space preparation, and 4mm of the coronal portion was restored with the temporary filling materials. Six specimens were totally sealed (negative control) and six specimens were not filled (positive control). An in vitro microbial leakage test (MLT) with a split chamber (upper/lower chambers) was used. Microbial microleakage was observed daily for 90 days. Data were analyzed by Kruskal-Wallis and Mann-Whitney tests.Results: Coltosol, IRM, and Vidrion R allowed microbial microleakage after 19 to 89 days. Conclusion: All temporary fillings and intracanal dressings did not prevent the penetration of microorganisms to the root apex.
RESUMO
Objetivo: Este estudo investigou a infiltração microbiana em materiais restauradores provisórios (Coltosol, IRM, Vidrion R) após preparo para retentores intrarradiculares. Metodologia: Quarenta e dois dentes humanos anteriores superiores foram preparados e obturados com guta-percha e Sealapex utilizando a técnica da condensação lateral, mantendo 4mm de remanescente apical de obturação. Foi usada pasta de hidróxido de cálcio para preencher o espaço criado para os pinos, deixando um espaço de 4mm na cervical a ser preenchido pelos materiais testados. Seis espécimes foram totalmente impermeabilizados (controle negativo) e seis espécimes não foram obturados (controle positivo). Um teste de infiltração microbiana (MLT) com uma câmara dividida em duas partes foi usado neste ensaio. A infiltração microbiana foi verificada diariamente durante 90 dias. Os dados obtidos foram analisados pelos testes de Kruskal-Wallis e de Mann-Whitney. Resultados: Coltosol, IRM e Vidrion R permitiram infiltração microbiana após 19 a 89 dias. Conclusão: O material restaurador temporário e a medicação intracanal não preveniram a penetração de microrganismos até o ápice radicular.
Subject(s)
Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Calcium Hydroxide / Post and Core Technique / Dental Leakage / Dental Restoration, Temporary Type of study: Controlled clinical trial Limits: Humans Language: Portuguese Journal: Rev. odonto ciênc Journal subject: Dentistry Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Goiás/BR / Federal University of Paraíba/BR / Public Health Office of the State of Goiás/BR / University of Pernambuco/BR

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Full text: Available Index: LILACS (Americas) Main subject: Root Canal Filling Materials / Calcium Hydroxide / Post and Core Technique / Dental Leakage / Dental Restoration, Temporary Type of study: Controlled clinical trial Limits: Humans Language: Portuguese Journal: Rev. odonto ciênc Journal subject: Dentistry Year: 2008 Type: Article Affiliation country: Brazil Institution/Affiliation country: Federal University of Goiás/BR / Federal University of Paraíba/BR / Public Health Office of the State of Goiás/BR / University of Pernambuco/BR