Dead Baby Tooth. If the tooth is dead it will often get darker in color and a person may notice a yellow gray or black discoloration. If no signs of infection exist do nothing.
If it doesnt there still may be no treatment needed other than observation. However if you are concerned its always best to contact your dentist to get a professional opinion. A change in color usually occurs because the red blood cells are dying.
Baby teeth can become discolored for many reasons including.
Our not quite 4 year old son fell and apparently killed a baby tooth--we didnt even know as there was no pain but a few days ago my husband noticed that the tooth was gray and looked like it was dying. You may have to shine a light on your childs tooth and look at the tongue side of the tooth with a mirror to detect this color change. It is discolored because the trauma caused internal bleeding in the tooth. Because the tooth is already dead there is a danger of the tooth becoming brittle and as a result often break or chip.