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Application of XP-Endo finisher files in the reduction of microbial load in oval-shaped root canals - An ex vivo study

The present study evaluated the effectiveness of XP-Endo Finisher (XPF) associated with XP-Endo Shaper (XPS) or Reciproc Blue (RB) files in the reduction of Enterococcus faecalis in oval-shaped root canals. Eighty mandibular incisors with single oval-shaped root canals were contaminated with E. faec...

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Main Authors: Mantovani, Giovanna Dornelas, Gomes, Brenda Paula Figueiredo de Almeida, Louzada, Lidiane Mendes, Vasconcelos, Rodrigo Arruda, Carvalho, Maria Cristina, Zuolo, Mario Luis
Format: Online
Language:English
Published: Universidade Estadual de Campinas 2019
Subjects:
Enterococcus faecalis
Sodium hipochlorite
XP-Endo finisher.
Online Access:https://econtents.sbu.unicamp.br/eventos/index.php/pibic/article/view/536
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Summary:The present study evaluated the effectiveness of XP-Endo Finisher (XPF) associated with XP-Endo Shaper (XPS) or Reciproc Blue (RB) files in the reduction of Enterococcus faecalis in oval-shaped root canals. Eighty mandibular incisors with single oval-shaped root canals were contaminated with E. faecalis for 10 days at 37°C with centrifugation on alternate days. The teeth were randomly assigned to eight experimental groups (n=10) as follows: G1 – XP-Endo Shaper, G2 – XP-Endo Shaper + XP-Endo Finisher, G3 – Reciproc Blue, and G4 – Reciproc Blue + XP-Endo Finisher. Chemomechanical preparation was performed with saline solution (NaCl) or 2.5% sodium hypochlorite (NaOCl). Microbial reduction was assessed by colony forming units (CFU/mL) count before (S1) and after (S2) CMP by using sterile paper points. ANOVA, Tukey’s test and Bonferroni’s post-hoc tests were used at 5% significance level. Bacteria were present in all initial samples (P>.05). All instrumentation techniques reduced bacteria, irrespective of the irrigating solution (P<.05). With the use of NaCl, Reciproc Blue was more effective than XP-Endo Shaper (P=.035). The association of XP-Endo Finisher improved the cleaning efficacy of both systems (P=.239). With the use of NaOCl, XP-Endo Shaper and Reciproc Blue presented similar effectiveness (P=.779). XP-Endo Finisher enhanced the bacterial reduction of both systems tested (P<.05). The use of NaOCl improved the CMP, irrespective of the instrumentation technique used (P<.05).
ISSN:2596-1969

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