Comparing tap water mouth rinse with tooth brushing and sugar-free chewing-gum: Investigating the validity of a popular belief

Among all oral diseases, tooth decay still imposes the greatest burden on health care systems. While patients prefer less complicated and time consuming preventive methods, the effectiveness of rinsing mouth with water has remained in the shadow. A great number of people, whether professional or not, believe that water rinse can be helpful where tooth-brush is not available. This study aimed to investigate that belief. In this study in three different attempts the basal saliva pH of 60 participants and their saliva pH after introducing to sugar solution, brushing teeth, chewing xylitol gum, and rinsing mouth with water were recorded. Data analysis showed that tap water may not be of any help in correcting oral pH after an acidic attack.