Purpose: To investigate the influence of breathing mode and nasal patency in the dimensions of the hard palate by comparing mouth breathing (MB) and nasal breathing (NB) adults.
Methods: Seventy-seven individuals, distributed into the MB group (n=38) and the NB group (n=39), of both genders and aged between 18 and 30 years old, took part in the study. The respiratory mode diagnosis was based on anamnesis, physical characteristics, and otorhinolaryngological examination.