Patient: It started when I was little, but we didn’t pay attention to it. I went to the hospital today and one doctor said to orthodontic now as soon as possible, and another said to orthodontic after the replacement of teeth. I’m not sure when the correct orthodontic treatment is. No laboratory tests! Beijing Children’s Hospital, Department of Stomatology, Zhang Peng: general treatment of antalgia during the period of milk teeth at the age of 4 years to 4.5 years, your child has missed the best period of correction, can only wait until the next stage of treatment of antalgia – replacement teeth orthodontic treatment, between 6.5 years to 7 years. Patient: Thank you Dr. Zhang! My child grew up drinking from a bottle until kindergarten, and always held the bottle up to drink milk, is this related. Now my child is not able to bite words, is it also related to this. Also, we parents don’t understand if the “teething period” should wait for the teeth to be replaced before orthopedic treatment. Or should we take our child to orthodontics when he/she reaches 6.5 years old? I’m looking forward to it! Beijing Children’s Hospital Department of Stomatology Zhang Peng: Long-term use of bottles will be a factor, and the way you use bottles may also have problems, improper use of bottles can also aggravate the jaw. If the jaw is not very serious, it will not have much effect on the clarity of speech. When all the teeth are replaced, you will reach the permanent tooth stage, around 12 years old. Your child’s next stage of antimandibular treatment is between the ages of 6 1/2 and 7.