Probiotics, like friendly germs, have gained a lot of interest for their potential health benefits. They are safe to use and don't cause problems. This book offers a comprehensive review of the existing research on probiotics, exploring how they work, the types of probiotics involved, and the evidence supporting their use for both general health and dental applications. It provides an organized understanding of the connection between probiotics and dental health. Each chapter focuses on specific aspects of the topic, combined with a theoretical understanding of existing research. Furthermore, this book highlights potential areas for integrating probiotics into oral health on a larger scale. Using probiotics as a way to prevent and treat oral diseases shows great promise. The benefits of probiotics, such as rebalancing the oral microbiota, modulating immune responses, and reducing the risk of dental problems, can significantly impact our oral health.Integrating probiotics into oral health initiatives can have important public health implications. The field of probiotics in oral health is still evolving, and more well-designed clinical trials and long-term studies are needed.