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Antibacterial ability of different activated irrigation after root canal preparation: intratubular analyses
Nabeshima, Cleber Keiti; Caballero-Flores, Hector; Vicente, Elisabete José; Gavini, Giulio; Machado, Manoel Eduardo de Lima.
Affiliation
  • Nabeshima, Cleber Keiti; University of São Paulo. School of Dentistry. Department of Restorative Dentistry. São Paulo. BR
  • Caballero-Flores, Hector; University of São Paulo. School of Dentistry. Department of Restorative Dentistry. São Paulo. BR
  • Vicente, Elisabete José; University of São Paulo. Institute of Biological Science. Department of Microbiology. São Paulo. BR
  • Gavini, Giulio; University of São Paulo. School of Dentistry. Department of Restorative Dentistry. São Paulo. BR
  • Machado, Manoel Eduardo de Lima; University of São Paulo. School of Dentistry. Department of Restorative Dentistry. São Paulo. BR
Braz. dent. j ; 35: e24, 2024. tab, graf
Article in English | LILACS-Express | LILACS, BBO - Dentistry | ID: biblio-1557211
Responsible library: BR1.1
ABSTRACT
Abstract This study assessed the intratubular antibacterial ability of different activated irrigations after chemical mechanical preparation. Seventy-two palatal root canals of upper molars were infected with Enterococcus faecalis for 4 weeks, and then initial bacterial collection from the main root canal was performed. The root canals were prepared by using a WaveOne Gold large (45/.05) and distributed into 6 groups according to the activation of the final irrigation ultrasonic activation (UA), XP-Endo Finisher (25/.00), XP Clean (25/.02), EasyClean (25/.04) in reciprocating motion and continuous rotary motion (ECRot), and conventional irrigation. After final irrigation, another bacterial collection from the main root canal was performed, and the root was sectioned transversely in three-thirds and stained for analysis by confocal laser microscopy. Intratubular bacteria were collected through dentin powder and plated for bacterial viability analysis. Intergroup and intragroup comparisons were performed by using analysis of variance and repeated measures analysis of variance, respectively, both at 5% significance. ECRot had higher antibacterial ability than UA (p<0.05), and both were superior to the other groups (p<0.05) in both methodologies. It can be concluded that activation of final irrigation enhances the disinfection of the root canal system, and activators have different efficacies
RESUMO
Resumo Este estudo avaliou a capacidade antibacteriana intratubular de diferentes irrigações ativadas após o preparo químico-mecânico. Setenta e dois canais palatinos de molares superiores foram contaminados com Enterococcus faecalis por 4 semanas, e então a coleta bacteriana inicial do canal principal foi realizada. Os canais foram preparados com WaveOne Gold large (45/.05) e distribuídos em 6 grupos de acordo com a ativação da irrigação final ativação ultrassônica (UA), XP-Endo Finisher (25/.00), XP Clean (25/.02), EasyClean (25/.04) em movimento reciprocante e em movimento rotatório contínuo (ECRot) e irrigação convencional. Após a irrigação final, outra coleta bacteriana do canal principal foi realizada, e a raiz foi seccionada transversalmente em três terços e corada para análise por microscopia laser confocal. Bactérias intra tubulares foram coletadas através de de dentina e cultivadas para análise de viabilidade bacteriana. As comparações entre grupos e intragrupos foram realizadas usando análise de variância e análise de variância de medidas repetidas, respectivamente, ambas com 5% de significância. ECRot apresentou maior capacidade antibacteriana que UA (p<0,05), e ambos foram superiores aos demais grupos (p<0,05) em ambas as metodologias. Pode-se concluir que a ativação da irrigação final melhora a desinfecção do sistema de canais radiculares, e os ativadores têm eficácias diferentes.


Full text: Available Collection: International databases Database: BBO - Dentistry / LILACS Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2024 Document type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR

Full text: Available Collection: International databases Database: BBO - Dentistry / LILACS Language: English Journal: Braz. dent. j Journal subject: Dentistry Year: 2024 Document type: Article Affiliation country: Brazil Institution/Affiliation country: University of São Paulo/BR
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