Eroded teeth of 2 year old babies need to be treated accordingly depending on the degree of decay. If the degree of decay of the baby’s teeth does not affect the nerve of the teeth, it is recommended that medication should be administered as early as possible to avoid infection of the nerve of the teeth. If it is shallow caries, you can choose to use a smooth carving needle to grind down the caries under the guidance of the doctor, and then choose the external treatment of medication such as stannous fluoride. If the caries is deeper, you can choose resin-based materials to fill. If the baby has pulpitis due to tooth decay, root canal treatment is needed. Baby’s teeth are corroded, you should take your baby to the regular dental hospital in time for treatment. Treatment should not be neglected just because milk teeth can be replaced in the future.