An article from azdailysun.com discusses a new method of treating cavities that utilizes a fluid, called SDF. This method does not require the use of anaesthetic, which could represent a significant breakthrough in treating cavities for medically fragile children who have a low tolerance for anaesthetic or the elderly who may be frightened by the drill.

Read more here:  https://azdailysun.com/news/local/game-changer-brush-on-liquid-helps-kids-avoid-anguish-of/article_3bd980db-7ee5-5754-a356-719140e7c4ef.html