ABSTRACT
Resumen Objetivo: Comparar la eficacia en la eliminación de Enterococcus faecalis con OxOral® versus hipoclorito de sodio a los 15 y 60 segundos. Material y métodos: Se incluyeron 36 cultivos de E. faecalis ATCC 29212 asignados en dos grupos; OxOral® e hipoclorito de sodio al 5.25% que a su vez fueron divididos en 15 y 60 segundos. Se colocaron 8 mL de agua peptonada, 1 mL del irrigante y 1 mL de la cepa, se dejó reposar. A cada tiempo se extrajo 1 mL y se sembró en agar sangre por 24 horas. Se empleó и de Mann-Whitney. Resultados: Con hipoclorito de sodio a 15 segundos hubo tres cultivos con crecimiento aceptable y seis extendido; a los 60 segúndos, cuatro tuvieron resultado eficaz, tres aceptable, uno extendido. Con OxOral® hubo crecimiento extendido en los nueve cultivos, en ambos tiempos, encontrando diferencias estadísticamente significativas a los 60 segundos (p < 0.01). Conclusión: La eliminación de E. faecalis fue mejor con hipoclorito de sodio a los 60 segundos.
ABSTRACT Objective: To compare effectiveness of ОхОrаl® versus sodium hypochlorite in Enterococcus faecalis elimination at 15 and 60 seconds. Material and methods: Material used in the study was 36 E, faecalis ATCC 29212 cultures assigned to two groups: ОхОrаl® and 5.25% sodium hypochlorite. Both groups were in turn divided into 15 and 60 second samples. Samples were placed in peptone water, 1 mL of irrigating solution and 1 mL of strain were left to rest. 1 mL was extracted at each time, samples were seeded into blood agar for 24 hours. Mann-Whitney и test was applied. Results: With sodium hypochlorite at 15 seconds, there were three cultures with acceptable growth and six with extended growth; at 60 seconds four cultures exhibited effective result, three acceptable and one extended. With ОхОrаl® there was extended growth in all nine cultures at both established times, significant statistical differences were found at the 60 seconds time (p < 0.01). Conclusion: E, faecalis elimination was better with sodium hypochlorite at 60 seconds.