How to determine whether baby teeth are calcified or decayed

Hello, this is very easy to judge. If the tooth is calcified, then this piece of it is hard; if the caries is bad, first the caries will go through a process, the first will become soft, then there will be defects on the surface of the tooth tissue, and later due to the progression of necrosis and bacterial erosion, there will be some tooth tissue blackening. From the color is black or white, or from the hardness is soft or hard, and from the baby's own reaction, such as whether there is some irritating pain, etc., it is easy to determine whether the tooth is calcified or decayed. In addition, after our normal teeth erupt, there is almost no calcification. Because the tooth will only erupt when the crown has matured. Therefore, if you find something very hard on the surface of your teeth, it does not mean that your teeth are calcified, and it may be soft dirt or tartar formed because of poor oral hygiene.