Methods: The present prospective randomized clinical trial was performed on 44 patients. The experimentation lasted for 4 weeks and 4 operators participated. The effects of the mouthwash were evaluated subjectively and objectively, with questionnaires, Visual Analogic Scales and clinical examinations. The results were statistically analyzed. The following variables were recorded: presence of mucosal lesions due to incongruous removable prostheses and lasting of pain after rinsing.