In vitro pathogenicity tests were carried out in 60 crowns and 80 in vivo stems. Both materials were sun dried during 5 days and disinfected with 3 % sodium hypochlorite for 4 min. and were washed 4 times with distilled water.
Se realizaron pruebas de patogenicidad in vitro en 60 coronas y 80 vástagos in vivo, ambos materiales se secaron a la luz solar durante 5 días y se desinfestaron con hipoclorito de sodio 3 % por 4 min y se enjuagaron 4 veces con agua destilada estéril.