Just try it. You can't die anyway. My example. There is something wrong with the teeth in the front row. The doctor said that brushing my teeth often can cure me. I brush my teeth in the morning and evening. I checked some information and said that fluoride toothpaste is good. My mother bought me two expensive ones and soon used them up. My mother gave me his precious Kang Xiang toothpaste. I used it today. I went to brush my teeth at night and found a small piece missing, so I checked it online. The outermost layer can't regenerate enamel. I feel depressed and need to have my teeth filled. Just look at more knowledge there and show me one that looks like this. It is best to brush your teeth with fluoride, while calcium carbonate can only clean and damage your teeth. I wiped it. You have bad toothpaste. Go and see what the first ingredient is. MD, you are really lying. I will answer them one by one, and the examples will determine whether they are good or bad. I hope you won't be cheated again.