Patient: Description of the condition (onset time, main symptoms, hospital, etc.): The child is 4 years old and found to be geodesic after the teeth grew in, but he did not go to the hospital, so he has been dragging on. When will the treatment be carried out? Urumqi Stomatological Hospital Children’s Stomatological Department Wei Yan Urumqi Stomatological Hospital Children’s Stomatological Department Wei Yan: Now is the best time to correct the milk teeth retrusion, I hope you do not miss it, hurry to the hospital consultation, even if the milk teeth retrusion after correction, permanent teeth relapse, the correction of the milk teeth period will have the correct guidance for the child’s jaw bone development.