Effect of Disinfection Protocols on Bacterial Reduction in Mandibular Molars.

Autor: Fernandes de OLIVEIRA, Helder, GOMES TEIXEIRA, Luan Carlos, da SILVA JÚNIOR, Ismael Fernandes, Ferreira da CRUZ, Francisco, CRISTINA SILVA, Hellen, da ROCHA GONÇALVES, Alex, de Almeida DECURCIO, Daniel, Aguirre GUEDES, Orlando
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Zdroj: European Endodontic Journal; Aug2024, Vol. 9 Issue 3, p236-242, 7p
Abstrakt: Objective: This study aimed to evaluate the bacterial reduction effect of disinfection protocols used in mandibular molars infected by Enterococcus faecalis. Methods: Eighty extracted mandibular molars were prepared and inoculated with E. faecalis for 2 months. The teeth were then divided into 2 control groups (n=4) and 4 experimental groups (n=18) according to the disinfection protocol utilized: G1. WaveOne Gold (WOG), passive ultrasonic irrigation (PUI) and Ultracal; G2. WOG, PUI and calcium hydroxide (CH); G3. WOG, XP-Endo Finisher (XPF) and Ultracal; G4. WOG, XPF and CH. Bacteriological samples were collected previously (S1), after preparation (S2), final agitation (S3) and intracanal dressing (S4). Microbial growth was assessed according to culture turbidity and UV spectrophotometry. Statistical analyses used the Friedman test for paired samples and Kruskal-Wallis test for non-paired data (p<0.05). Results: No protocol eliminated E. faecalis effectively. The S2, S3 and S4 samples were statistically different from the S1 samples in G1, G2, G3 and G4 (p<0.05). Statistical differences were observed in bacterial reduction between G1 and G2 and G1 and G3 after the intracanal medicament (S4) (p<0.05). Conclusion: The combination of WOG with PUI and CH disinfection protocol showed higher percentages of bacterial reduction. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index