Samples were thermo-cycled for 300 cycles, between 5 and 55 °C for 60 seconds. This procedure was performed in the device developed at the Dental Materials Laboratory of the Research and Graduate School, National School of Dentistry, National University of Mexico.
Fueron termociclados por 300 ciclos entre 5 y 55 °C durante 60 segundos, en el aparato desarrollado en el Laboratorio de Materiales Dentales de la División de Estudios de Postgrado e Investigación de la Facultad de Odontología de la UNAM.