Two year old baby teeth yellow should be given appropriate treatment according to different reasons. Common causes are not paying attention to oral hygiene, dental caries and so on. Commonly used treatment methods such as general treatment, drug treatment. 1. Do not pay attention to oral hygiene: two-year-old baby’s teeth yellow, may not pay attention to oral hygiene, teeth surface food debris tartar formation. Parents can use finger toothbrush to brush the baby’s teeth every morning and evening to remove the dirt on the surface of the teeth. 2. Dental caries: pay attention to oral hygiene, control sugar intake, regular oral examination. Sodium fluoride glycerin paste can be used for fissure sealing, silver fluoride and other treatment of caries holes to prevent further development of caries. If the defect is serious, surgical treatment such as composite resin and glass ion filling can be performed. Two-year-old babies belong to the growth and development period, once found that the color of the teeth is abnormal, should go to the specialist hospital in a timely manner, under the guidance of the doctor to actively standardize the treatment. The above medications and treatments should be used under the guidance of a doctor.