Six-year-old Zhou Zhou (not her real name) went to the Orthodontics Department of Jinan Stomatological Hospital because of "Bao Tian". During the follow-up visit, the doctor told her that she could stop wearing the appliance, but the possibility of recurrence of Dibaotian was very high, and her mother Zhou Zhou was very worried about it. Faced with the correction of "the land is everywhere", many parents like Zhou Zhou's mother will ask such and such questions. Dr. Yin Xiaoqing from the Orthodontics Department of Jinan Stomatological Hospital answered the question about the baby's "blue sky everywhere".

1. Do I need to wait until my teeth are changed?

The correction of "everywhere" follows the principle of "the earlier the intervention, the better", provided that the children can cooperate, so parents are reminded to pay attention. Once the child is found to be "everywhere", he should immediately go to a regular stomatological hospital for examination and treatment. Generally speaking, the late deciduous teeth and the tooth changing period are the most favorable periods to correct the "covering the sky", because the maxilla is at the peak of growth and development during this period, and the stimulation of the maxilla will be more conducive to its development.

2. Is it that the longer the appliance is worn, the smaller the chance of later recurrence?

First of all, it should be clear that the recurrence of "plot day" is related to the growth and bad habits of patients, and has nothing to do with other factors. Clinically, the correction of "ground cover" is based on the normal coverage of anterior teeth. As long as the malocclusion is relieved, it is not recommended to wear the appliance continuously, which will only make the teeth more lipped. There is no clinical study showing that this will promote the development of maxilla.

3. Will the "all-over-the-ground" in deciduous teeth and mixed teeth recur after being corrected to normal?

Genetic inheritance and bad habits are the causes of "plot day" If it is caused by bad habits, early intervention to remove malocclusion will not recur after correcting bad habits. But if it is caused by genetic inheritance, the recurrence rate is high. Even if intervention is carried out in deciduous teeth and dentition, it may recur with the arrival of the peak period of growth and development.

4. What bad habits can easily lead to "covering the sky"? How should it be avoided?

First, bad tongue habits and low tongue position. Normally, the tongue is located behind the maxilla. If the tongue is located in the mandible for a long time, it will lead to excessive mandibular arch; Second, nasal ventilation is insufficient, and mandibular protrusion leads to heaven. Children with low tongue need to come to orthodontics as soon as possible for corresponding treatment and tongue muscle training. For children with insufficient nasal ventilation, it is recommended to transfer to otorhinolaryngology for further examination and treatment. Long-term oral breathing will lead to maxillofacial deformity, which is not conducive to the normal development of maxillofacial region.

5. Is the treatment time of "Dibaotian" long?

The treatment of "Dibaotian" can be said to be a sequential treatment. For patients with skeletal malocclusion and genetic history, the treatment may last from deciduous teeth to adulthood of 18 years old, in which the treatment intervention and observation always accompany the whole growth and development process of patients. For the "everywhere" caused by bad habits, early intervention is effective and the course of treatment is short. Bad habits will not recur as long as they are corrected.