Although there has been a decrease in the prevalence and the severity of dental caries in children over the past few decades, still, various studies in literature worldwide report high prevalence of dental caries. Traditional restorative methods for treating dental caries are not always affordable or possible, as it requires patient cooperation for desirable outcome. To overcome this problem, Silver diamine fluoride (SDF) was first promoted in Japan in late 1960’s. The antimicrobial effect of silver compounds has been proven by the 100-year-old application of silver compounds for the prevention and treatment of various infections. Now in many countries a 38% (44,800 ppm fluoride) SDF solution is commonly used to arrest caries and to reduce hypersensitivity. Application of SDF to arrest dental caries is a noninvasive procedure that is quick and simple to use. When SDF is applied on carious lesions, the fluoride enhances remineralization and the silver ions act as an antibacterial agent and inhibit the growth of cariogenic biofilms. However, it has certain drawbacks like black discoloration of the carious teeth and an unpleasant metallic taste. But, the low cost of SDF and its simplicity in application suggest this as a novel preventive agent in public dental health projects.

Keywords: Silver diamine fluoride; Silver; Dental caries; Preventive dentistry.