Silver diamine Fluoride 

SDF is a non-invasive liquid medication that is proven to be very effective in arresting, or stopping, tooth decay.

Unlike other treatment methods, silver diamine fluoride is applied to the teeth by a dentist with a brush. It can be a great option for anxious children on baby teeth that are nearing exfoliation. The significant side effect of silver diamine fluoride is discoloration. Healthy tooth surfaces remain undisturbed, but tooth decay (which is usually brown in color) turns very dark, nearly black, after application