It is important that patients are aware that a black tooth is nothing compared to letting a cavitated lesions continue its damages or make a child undergo general anesthesia or sedation. Dentists can apply SDF to give them time before they actually normally restore the tooth or they can leave the cavitated lesion there and cover it with SDF. In that case, it is recommended to monitor the lesion and, possibly, reapply at standard hygiene recalls. It is also a very good solution for population with limited access to dental treatments. To learn more you can always visit our Website: http://oralscience.com/en/products/advantage_arrest/