Patient: Description of condition (onset, main symptoms, hospital visited, etc.): Hello, doctor. My child has a misaligned upper and lower dental bed, the upper dental bed to the inside, the lower dental bed to the outside, only now found, already 1 year and 1 month old, I wonder if it can be changed? The lower row of teeth is sparse and the upper row of teeth is well grown, it does not affect eating and cannot be seen from outside. Is it possible to treat it? There is no impact on future life, no There are no sequelae, on the Urumqi Stomatological Hospital Children’s Stomatological Department Wei Yan Urumqi Stomatological Hospital Children’s Stomatological Department Wei Yan: this situation is called breast teeth retrusion, is commonly known as the “ground bag days”, parents do not need to be too nervous, currently need to understand your child whether this situation has genetic If it’s genetic, you don’t need to deal with it for the time being, if it’s because of feeding problems, please correct it in time, what you need to do is to wait until the child is 3 years old, take it to a regular hospital to do a mastodon orthodontic treatment, please don’t miss the best time, what can also contact me!