While there are other methods of treating cavities in children, SDF is preferable because it is a quick and easy process that involves no pain or discomfort as there’s no need for the injection of an anesthetic. For over 80% of smaller cavities, we encounter, SDF is the only treatment required. For larger cavities in younger children, SDF keeps cavities from progressing until other treatment options may be considered that would offer more permanent results. Finally, SDF helps to remineralize the natural tooth structure.