Prevention of root caries: a literature review of primary and secondary preventive agents. Special Care in Dentistry. 2013This study reviewed and summarized the effectiveness of root caries preventive agents: fluoride, chlorhexidine, xylitol, amorphous calcium phosphate (ACP), sealants, saliva stimulators, or silver diamine fluoride. 38% silver diamine fluoride was the best choice in preventing dental caries, however, silver diamine fluoride has not been approved by the FDA for clinical use in the United States. The next best choice to prevent root caries was application of a 22,500ppm(5%) Sodium Fluoride Varnish every 3 months.















