What is the main function of saliva in oral health?

Saliva plays a crucial role in maintaining oral health, particularly through its ability to neutralize acids and assist in the remineralization of teeth. When acids from food and bacterial activity lower the pH in the mouth, saliva helps to restore a neutral pH level, which is vital in preventing tooth decay. Additionally, saliva contains minerals, such as calcium and phosphate, which are essential for the process of remineralization. This process helps to repair early stages of tooth decay and strengthens enamel, making teeth less susceptible to further damage.

While saliva does enhance taste sensations, provide lubrication for speech, and facilitate the digestion of carbohydrates, these functions are secondary to its protective role in maintaining the pH balance and supporting remineralization in the oral cavity. The primary concern in oral health contexts focuses on the protective and restorative functions of saliva in relation to dental conditions.