Two-year-old baby incisor erosion is gone, can be oral examination, after taking X-rays, respectively treatment, as follows: 1, remove the infected pulp: If the residual tooth tissue texture hard, X-rays show that the root is long, no obvious shadow formation, you can remove the infected pulp, use 3% hydrogen peroxide solution to rinse the root canal, the use of calcium hydroxide paste filling root canal, the application of glass ion hydromorphone, etc. closed root canal mouth . 2. Extraction of baby teeth: If the teeth are soft, the X-rays show that the roots are small or there is resorption in the root canal, forming a large shadow, the baby teeth can be extracted under local anesthesia and a gap retainer can be worn to maintain the integrity of the dental row. Babies should pay attention to oral hygiene and cleanliness to reduce the retention of food residue and soft scale and prevent other teeth from forming caries.