Inclusion Criteria:  Patients seeking a set of conventional maxillary and mandibular complete dentures at the University of Jordan Hospital, for the first time or as a replacement of their previous dentures.  Patients aged between 45 and 80 years old. Patients had been completely edentulous for at least 3 months Patients without severe underlying medical conditions, neuromascular dysfunction, auditory problems, mental conditions, oral pathology, xerostomia, or tied tongue condition.  Patients who approved and consented to participation.