The pH of saliva typically ranges from about 6.2 to 7.6 , with an average pH around 6.7 to 6.8. This means saliva is slightly acidic to neutral under normal conditions. The pH can fluctuate based on factors like food and drink consumption, and oral bacteria activity, which can lower the pH by producing acids. Maintaining a balanced saliva pH helps protect teeth and gums from decay and other oral health issues. A pH below 7 indicates acidity, which can increase risks for dental decay and gum problems, whereas a pH above 7 indicates alkalinity, which is less common but can also affect oral health.
