Objective The hearing and speech rehabilitation effects by hearing aid use and cochlear implantation in hearing-impaired children were compared.Methods A total of infants aged from 6months to 3years with severe hearing loss of prelingual nature were included.They were divided into 2groups:group 1(18with hearing aids)and group 2(14with cochlear implantation).There was no significant difference in the degree of hearing loss and age between the 2groups.They received rehabilitation education of the same content...