One and a half year old baby teeth erosion can be remedied by the following measures: 1. Adjust the baby’s eating habits. Try to avoid the baby to eat too sweet, too sticky food, after meals in time to help the baby scrub the tooth surface as well as mucous membrane. Avoid plaque retention. 2. Correct the baby’s bad habits: some babies will have the bad sleeping habit of holding the bottle, avoiding a large number of caries-causing bacteria when the baby sleeps may produce acidic substances, leading to demineralization of the tissues of the dentition. 3. If the baby’s premolar teeth are superficially carious, they can be adjusted and ground using a smooth turning needle under the guidance of a doctor, and then coated with medications such as stannous fluoride, sodium fluoride, silver nitrate, etc. for treatment. If the tooth has undergone extensive caries, you can choose metal-forming crowns or resin-forming crowns for repair. Baby teeth corrosion is serious, you should bring your baby to the doctor in time.