SDF, or silver diamine fluoride is a therapy that provides a simple and painless treatment alternative to drilling dental caries in children. It is composed of 38% SDF, a silver fluoride salt made soluble in water through the addition of ammonia. SDF received Food and Drug Administration approval in 2014 as a device for treating dental hypersensitivity. SDF application takes about one minute and does not require the removal of carious tissue, eliminating the need for needles and anesthesia. Unlike traditional fillings, SDF application remineralizes the tooth and may also kill bacteria, which could help prevent future caries lesions. 

SDF can be applied at the office prior to restoring a tooth that’s been affected by a cavity. Depending on the severity of the cavity, SDF may not be a treatment option,  Learn more about how SDF may provide a less invasive treatment for cavities here