牙痛是孩子的常见的症状，其诱发因素很多，有些是由牙齿本身病变所引起，但有些牙痛并非牙齿的疾患，而是与其他全身性疾病有关。所以，当孩子牙痛时，父母应想到以下几种病。一、牙齿外伤牙齿外伤多因孩子意外摔倒、磕撞，碰伤牙齿，或因进食时咬到砂石、骨头等硬物，使牙齿 Toothache is a common symptom in children. Many factors are induced. Some are caused by the disease of the tooth itself. However, some toothache is not a tooth disease, but is related to other systemic diseases. So, when a child has a toothache, parents should think of the following types of illness. First, the dental trauma Tooth injury due to accidental fall of children, knock knock, bruised teeth, or bite due to eating gravel, bones and other hard objects, so that the teeth