Tehran University of Medical Sciences Auditory and Vestibular Research 2423-480X 31 2 2022 04 13 98 103 EN Mitra Sohrabi Department of Speech Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran Nahid Jalilevand Department of Speech Therapy, School of Rehabilitation Sciences, Iran University of Medical Sciences, Tehran, Iran AND. Rehabilitation Research Center, Iran University of Medical Sciences, Tehran, Iran 2021 07 23 2021 09 22 Background and Aim: Consonant development plays a significant role in speech intelligibility which is impaired in children with profound hearing loss. Cochlear implant (CI) can facilitate the development of language comprehension and sound production in children with severe to profound sensorineural hearing loss. This study aimed to compare consonant production skills in children with CI and normal-hearing (NH) children aged 3–5 years. Methods: In this cross-sectional study, participants were 20 children with CI and 20 agematched NH children. The consonant production skills were assessed using the speech intelligibility test in Persian. Results: There were significant differences between CI and NH children (p<0.05), where the highest percentage of correct production in both groups was related to the manner of articulation of stop and nasal consonants. NH children showed less accuracy only in /r/ and /ʧ/, while children with CI were less accurate in /q/, /x/, /ʤ/, /l/, /j/, and /r/. Conclusion: Children with CI have lower scores compared to age-matched NH peers, but they have similar consonant production skills. https://avr.tums.ac.ir/index.php/avr/article/view/981