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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Infiltração microbiana em remanescentes de obturação de canais radiculares acrescidos de selador temporário

Paes, Fabio Resende 16 June 2006 (has links)
This study aimed to determine coronal leakage of root canals filling remnants when employing Sealapex , used or don t used temporary restorative materials Cotosol or Super Bonder, by means of differents microbial indicators. Thus, 32 single-rooted human teeth were used, which were shaped until the file size 50 and assigned to 4 groups. A group was used as control. In the study model, a platform was employed, which was split in two halves: an upper chamber where the microbial suspension containing the biological indicators was introduced (E. faecalis + S. aureus + P. aeruginosa + B. subtilis + C. albicans); and a lower chamber containing the culture medium Brain Heart Infusion, in which 3mm of the apical region of teeth were kept immersed. Interpretations of the time to occur microbial leakage were made daily for 60 days, using the turbidity of the culture medium which is indicative of microbial contamination, as a reference. The data obtained were submitted to the Kruskal-Wallis test. The results show that in the three: Group 1 - remaining obturation with Sealapex of 5mm; Group 2 - remaining obturation with Sealapex of 5mm and plug of 1mm Cotosol; Group 3 - remaining obturation with Sealapex of 5mm and plug of 1mm Super Bonder; didn t show statistical significant difference (p<0.05). In the group 1 didn t finding microbial leakage in 100% of the samples and for groups 2 and 3 in 87,5%. / Estudou-se a infiltração microbiana em remanescentes de obturação de canais radiculares selados com guta-percha e cimento Sealapex, utilizando ou não um tampão com material selador temporário Coltosol ou o adesivo Super-Bonder. Trinta e dois dentes unirradiculares humanos extraídos foram utilizados e distribuídos aleatoriamente em quatro grupos experimentais com 08 amostras cada, sendo um controle. Para o modelo de estudo, empregou-se uma plataforma, dividida em duas partes: câmara superior onde foi introduzida a suspensão microbiana contendo os indicadores biológicos (E. faecalis + S. aureus + P. aeruginosa + B. subtilis + C. Albicans); e, câmara inferior, com o meio de cultura Brain Heart Infusion, onde os dentes permaneceram imersos com 3mm do remanescente apical radicular durante o período de 60 dias. Os dados obtidos foram submetidos ao teste estatístico Kruskal-Wallis. Os resultados mostraram que no grupo 1 - remanescente de obturação com Sealapex + guta-percha de 5mm não foi verificado infiltração microbiana em 100% das amostras; no grupo 2 - remanescente de obturação com cimento Sealapex + guta-percha de 5mm + tampão de 1mm de Cotosol e 3 - remanescente de obturação com cimento Sealapex + guta-percha de 5mm + tampão de 1mm de Super Bonder não foi verificado infiltração microbiana em 87,5% das amostras. Não houve diferença estatística significativa entre os três grupos, quanto à infiltração microbiana, decorridos 60 dias (p<0,05). / Mestre em Odontologia

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