2. It doesn't matter when the tooth is pulled out, because the pulled tooth is the fourth tooth, and its function is very weak, and there is a fifth tooth with similar function. It has no effect on various functions such as occlusion.

What you said about your father is not unreasonable, but it has nothing to do with orthodontics. After orthodontics, the teeth will be rearranged without any gaps. There will be no loosening of teeth.

In addition, tooth looseness is related to periodontal disease and other factors.

If not corrected, there will be many problems, which will easily lead to tooth decay and gingivitis.

Suggestion: Rest assured to correct, as long as it is a regular hospital, doctors will do better.