120 third molars were included in the sample. Molars had to comply with established participation criteria: healthy, not erupted, with crown integrity and lacking visible structural defects in the enamel. Teeth were prepared following the method described by Klein and his group. This method is now briefly described: root soft tissue was removed, and prophylaxis was performed with fluoride-free prophylactic paste QOM, Mexico. Molars were then sectioned with a diamond disk Allied High Tech Products, USA in a mesio-distal direction and at the longitudinal axis, under constant irrigation.
Se utilizaron 120 terceros molares que cumplieron los criterios de participación establecidos sanos, no erupcionados, con integridad coronaria y sin defectos estructurales visibles en el esmalte, los dientes fueron preparados según el método descrito por Klein y colaboradores; a continuación se hace una breve descripción del método: se elimina el tejido blando radicular y se realiza profilaxis con pasta profiláctica sin flúor QOM, México; posteriormente, fueron seccionados con un disco de diamante Allied High Tech Products,USA en sentido mesiodistal y en el eje longitudinal, bajo irrigación constante.