Results: Four studies were selected for review. All studies examined caries arresting effect of SDF and demonstrated to be significantly better than the controls. Two studies assessed the ability of SDF to prevent dental caries. One study reported no significant difference, whereas the other found a decrease in carious lesions with SDF application. SDF was shown to exert its positive effect on both primary and permanent dentitions. Black staining was noted following SDF application in three of four studies.