Introduction: Tongue position during deglutition presents great variability and can be assessed clinically or with different techniques. Aim: This study aims to determine tongue position during deglutition in children aged 8–16 years with anterior open bite (AOB) and normal vertical overbite (NVO) using a fluorescein technique. Settings and Design: A cross-sectional analytical study was conducted to assess tongue contact points during the oral phase of deglutition. Subjects and Methods: A total of 132 children with AOB and 132