Silver Diamine Fluoride (SDF) is a topical treatment that has gained significant recognition in dentistry for its effectiveness in halting the progression of dental caries (cavities) and preventing further decay. Approved for use in various countries, SDF consists of two key components: silver, renowned for its antibacterial properties, and fluoride, which aids in remineralizing tooth enamel. This combination not only targets existing cavities but also helps to strengthen teeth, making it a valuable tool in both restorative and preventive dentistry.