Influência de diferentes técnicas de obturação na infiltração bacteriana coronária: estudo em cães

Autores

DOI:

https://doi.org/10.33448/rsd-v10i4.13884

Palavras-chave:

Cavidade Pulpar; Endodontia; Infiltração dentária; Obturação do canal radicular.

Resumo

O objetivo deste estudo foi avaliar, in vivo, a infiltração bacteriana coronária após tratamento endodôntico com diferentes técnicas de obturação. Foram utilizados 45 canais radiculares de cães, originados de incisivos e pré-molares. Os animais foram intubados após anestesia geral. Após antissepsia local e isolamento absoluto, os dentes foram acessados e instrumentados até uma lima manual K#40, seguido de três protocolos de obturação com Endofill®: Condensação lateral, Condensação lateral com plug coronário de Endofill® endurecido e técnica híbrida de Tagger. Os acessos coronários não foram selados e as obturações permaneceram expostas ao meio bucal por 90 dias. Após esse período, os animais foram eutanasiados e os espécimes processados ​​histologicamente e corados com Brown e Brenn. Os túbulos dentinários foram avaliados com análise descritiva da presença ou ausência de bactérias. Infiltração bacteriana foi identificada nas paredes do canal radicular em seis dos 14 canais radiculares preenchidos com a técnica de condensação lateral (42,8%), dois dos 15 canais preenchidos com condensação lateral com um plug de Endofill® (13,3%) e em dois de 13 canais obturados pela técnica híbrida de Tagger (15,3%). Embora o uso do plug coronal ou da técnica de compactação termomecânica tenha demonstrado menor infiltração bacteriana do que a condensação lateral convencional, nenhuma das técnicas de obturação evitou a infiltração bacteriana na região periapical, evidenciando a importância de um selamento coronário adequado ou restauração final.

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01/04/2021

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DEZAN-JÚNIOR, E.; BUENO, C. R. E.; VASQUES, A. M. V.; SOUZA, V. de .; NERY, M. J.; OTOBONI FILHO, J. A. .; BERNABÉ, P. F. E. .; GOMES-FILHO, J. E.; CINTRA, L. T. A.; JACINTO, R. de C.; SIVIERI-ARAÚJO, G.; HOLLAND, R. Influência de diferentes técnicas de obturação na infiltração bacteriana coronária: estudo em cães. Research, Society and Development, [S. l.], v. 10, n. 4, p. e11010413884, 2021. DOI: 10.33448/rsd-v10i4.13884. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/13884. Acesso em: 23 nov. 2024.

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