Apical Infiltration
Mostrando 1-12 de 21 artigos, teses e dissertações.
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1. Influência do alargamento foraminal na anatomia apical e na qualidade de selamento após obturação / Influence of apical foramen widening on apical foramen morphology and apical sealing
Introduction: The aim of this study was to evaluate the influence of the working length and apical foramen widening on the anatomy of the apical foramen and on the sealing ability after root canal filling. Methods: Fifty-five palatal roots of maxillary molars were selected. The samples were randomly divided into three groups (n=15) according to the different
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/04/2011
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2. Análise qualiquantitativa da permeabilidade dentinária do terço apical de diferentes grupos dentais / Qualiquantitative analysis of apical dentin permeability in different dental groups
This ex vivo study evaluated histochemically the dentin permeability of the root canal walls in the apical third of different human dental groups, analyzing the pattern of dentinal tubule distribution and the presence of sclerotic dentin in this region. Eighty teeth were used, being 8 of each dental group - maxillary and mandibular central incisors, lateral
Publicado em: 2010
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3. Evaluation of periapical inflammation response from coronal leakage in dog´s teeth obturated using different resin-based sealers and different obturation techniques / Avaliação da resposta inflamatória periapical resultante da infiltração coronária em dentes de cães obturados com diferentes cimentos resinosos e técnicas obturadoras
Considering the need for three-dimensional obturations and adequate marginal sealing of the radicular canal system as being decisive factors for successful endodontic therapy, this study had as its objective the evaluation of periapical inflammatory responses resulting from coronary infiltration in dogs teeth obturated using different resin sealers (AH Plus,
Publicado em: 2009
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4. Evaluation of the apical infiltration after root canal disruption and obturation
The aim of this study was to evaluate two root canal filling techniques used in teeth that had their apical foramen disrupted and compare the apical infiltration with an ideal clinical situation. Twenty-seven freshly extracted single-rooted teeth were selected and radiographed to confirm the existence of a single and straight root canal. The crowns were remo
Journal of Applied Oral Science. Publicado em: 2008-10
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5. AvaliaÃÃo do tempo de recontaminaÃÃo de canais obturados com cones ProTaper utilizando diferentes tÃcnicas
Objetive The aim of the present study was to assess the recontamination time of root canals filled with master Gutta-percha ProTaper point after exposure to human saliva. Methodology Fifty intact, caries-free, premolars with single roots and mature apices were selected for the study. After biomechanical preparation with the ProTaper Universalâ rotary system
Publicado em: 2008
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6. Análise in vitro da penetração do corante azul-de-metileno na dentina radicular humana variando-se o método de impregnação . / An in vitro analysis of the methylene blue dye penetration in human radicular dentin with different methods of impregnation
The purpose of this investigation was to evaluate how different contact methods of methylene blue dye solution 0, 5%, pH 7 for 24 hours, have influenced, in the reading of the demarcation leakage by tracer agent on the root dentin of human teeth. This study assesses 6 different methods: the dye agitation using the ultrasonic Gnatus, the agitation with the ul
Publicado em: 2006
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7. "Estudo comparativo da resistência à infiltração que diferentes materiais resinosos utilizados na cimentação de retentores intra-radiculares oferecem à passagem de fluidos que atravessam a dentina" / Comparative study of the infiltration resistance that different resinous materials used in intra-radicular retainers foundation offer to the fluids passage that cross through the dentine.
This study objective is to evaluate in vitro, the resistance that different resinous materials have through the fluids passage cross through the dentine in the absence of radicular cementum. 60 human teeth given by FOUSP bank of teeth were used. The teeth were submitted to endodontic treatment according to Paiva s and Antoniazzi´s technique and stored in a
Publicado em: 2005
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8. Influence of temporary fillings, intracanal and remaining medication of obturaÃÃo of the canal to radicular to microbial infiltration / InfluÃncia de seladores temporÃrios, medicaÃÃo intracanal e remanescente de obturaÃÃo do canal radicular à infiltraÃÃo microbiana
Esta pesquisa teve como objetivo verificar a infiltraÃÃo microbiana em dentes preparados para retentores intra-radiculares, selados provisoriamente com ColtosolÂ, IRM e Vidrion RÂ, tendo como influÃncia à presenÃa ou ausÃncia de medicaÃÃo intracanal. Para tanto, foram avaliados 42 dentes unirradiculares humanos, instrumentados atà a lima de nÃm
Publicado em: 2005
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9. Análise in vitro da presença de infiltração apical em dentes apicectomizados com técnica convencional e com o Laser de Er:YAG.
The high number of failure in Endodontic Surgery is mostly correlated to the lack of an adequate marginal sealing after an apicoectomy, compromising the maintenance of an environment not vulnerable to bacterial penetration. The aim of the present investigation was to evaluate (in vitro), by means of Methilene blue 2 %, the apical permeability of teeth after
Publicado em: 2004
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10. AvaliaÃÃo comparativa da capacidade de infiltraÃÃo dentinÃria da clorexidina a 0,2% na irrigaÃÃo de canais radiculares: estudo in vitro
O presente estudo teve como propÃsito avaliar in vitro a capacidade de infiltraÃÃo dentinÃria da clorexidina a 0,2% na irrigaÃÃo de canais radiculares, quando comparada ao hipoclorito de sÃdio a 1% e à Ãgua bidestilada (controle). A amostra foi composta de 51 dentes distribuÃdos em trÃs grupos, com 17 dentes cada, que foram submetidos ao preparo q
Publicado em: 2003
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11. Polymorphonuclear leukocyte transmigration promotes invasion of colonic epithelial monolayer by Shigella flexneri.
In vivo and in vitro, Shigella flexneri, an invasive pathogen of the human colon, cannot invade epithelial cells through their apical pole. To identify ways by which it may reach the cellular basolateral domain in order to invade, we have established an assay using the human colonic T-84 cell line grown on permeable filters. Human PMN were added to the basal
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12. Immunocytological responses in porcine proliferative enteropathies.
The ileum, colon, and mesenteric lymph nodes of pigs naturally affected by either of the two major forms of proliferative enteropathy, namely, intestinal adenomatosis or hemorrhagic enteropathy, were examined for immunocytological responses to infection by immunocytochemistry, using antibodies directed against elements of the porcine immune system. In both f