Five samples were made of all groups. Samples measured 8 mm diameter by 4 mm thickness. All samples were placed in a Hanau oven at 95% humidity at 37.5 ± 5 C for 24 hours.
De cada grupo se elaboraron cinco muestras de 8 mm de diámetro por 4 mm de espesor; todas fueron colocadas en una estufa Hanau con 95% de humedad a 37.5 ± 0.5 C durante 24 horas.