Objective To determine the correlation between dental crowding and sleeping posture in children. Methods A total of 305 children who satisfied the inclusion criteria were examined, and their sleeping conditions were checked by dentists. Results The correlation of dental crowding with oppressive sleeping posture was found to be greater than nonoppressive sleeping posture. Furthermore, long-term left sleeping posture has a higher correlation with left dental crowding. Long-term right sleeping posture also has a higher correlation with right dental crowding. Conclusion Dental crowding in children is correlated with sleeping posture.
