What is an indication of a high lactobacilli concentration in saliva?

A high concentration of lactobacilli in saliva is indeed an indication of a risk of high cavities. Lactobacilli are a type of bacteria that are commonly associated with dental caries (cavities) due to their ability to ferment sugars and produce acids. These acids can lower the pH in the oral cavity, leading to demineralization of tooth enamel, which is a critical factor in the development of cavities.

When lactobacilli are present in greater numbers, it suggests that there may be an increase in fermentable carbohydrates in the diet, which contributes to an acidic environment in the mouth, further elevating the risk for cavity formation. This understanding highlights the importance of monitoring lactobacilli levels as a potential indicator for assessing oral health risks, particularly in relation to caries development.