title: Enterococcus faecalis leakage of root canal sealers: an ex vivo study.
abstract: The aim of this ex vivo study was to evaluate bacterial penetration after filling root canals using 3 different techniques. Three experimental groups of 25 teeth each, obturated with lateral-warm-vertical condensation of gutta-percha, Microseal technique and EndoREZ system, respectively, were tested in a split chamber model system using Enterococcus faecalis and monitored for 180 days to determine bacterial penetration. A statistical analysis was performed using the Kaplan-Meier method. Median survival time was 25 days for Microseal system, 41 for lateral-warm-vertical condensation and 81 for EndoREZ®. Significant differences were demonstrated between Microseal and EndoREZ (p less than 0.001) and between Microseal and lateral-warm-vertical condensation technique (p less than 0.05). No statistically significant differences were observed between EndoREZ and lateral-warm-vertical condensation. After 180 days of assessment, 20 percent of the EndoREZ samples resisted bacterial penetration and furthermore, the EndoREZ system has the potential to be a filler system compatible with other currently used systems.
authors.affiliation: Department of Medical, Oral and Biotechnological Sciences, University of Chieti-Pescara, Chieti, Italy.
authors.forename: S
authors.initials: S
authors.lastname: D'Ercole
authors.forename: A
authors.initials: A
authors.lastname: Filippakos
authors.forename: R
authors.initials: R
authors.lastname: De Toledo Leonardo
authors.forename: C H
authors.initials: CH
authors.lastname: Pameijer
authors.forename: D
authors.initials: D
authors.lastname: Tripodi
mesh_terms: D003188:Composite Resins / Q000494:pharmacology*; D003786:Dental Pulp Cavity / Q000382:microbiology*; D013293:Enterococcus faecalis / Q000254:growth & development*; D005260:Female; D006801:Humans; D008297:Male; D012387:Root Canal Filling Materials / Q000494:pharmacology*; D014070:Tooth / Q000382:microbiology*
chemical_list: D003188:Composite Resins; C481259:EndoRez; D012387:Root Canal Filling Materials