[Evaluation in vitro of the antibacterial effectiveness of 2.5% sodium hypochlorite on endocanal bacteria related to the time contact within root canal].
BACKGROUND
The aim of this study was to evaluate the antibacterial effectiveness of 2.5% sodium hypochlorite on endocanal bacteria related to the time contact Within root canal.


METHODS
110 teeth were prepared and inoculated with Enterococcus feacalis. All teeth were irrigated with a same volume and exposed a period ranging 1 to 10 min. Canals were sampled before and after time contact.


RESULTS
All time reduced the number of bacterial cells within the root canal (p > 0.05). There was no significant difference after the time contact of 3 min (p > 0.05). Lack of effectiveness might be caused by irrigant to reach microorganism in dentinal tubules.
Toure
B
B
Service d'Odontologie Conservatrice Endodontie, Département d'Odontologie Faculté de Médecine de Dakar.
Kane
A W
AW
Faye
B
B
Sarr
M
M
Roux
D
D
Traore
O
O
Mbaye
M
M
D001419:Bacteria / Q000187:drug effects*; D003786:Dental Pulp Cavity / Q000382:microbiology*; D004202:Disinfectants / Q000008:administration & dosage*; D006801:Humans; D066298:In Vitro Techniques; D012973:Sodium Hypochlorite / Q000008:administration & dosage*; D013997:Time Factors
D004202:Disinfectants; D012973:Sodium Hypochlorite