Too big teeth can not be filled?

Too big teeth can not be filled?

Is it too old to straighten your teeth?

Tooth movement is a bone remodeling process that exists in the living body, so orthodontics is suitable for all ages. However, different individuals have different problems, 

and the timing of starting correction is also different. Children as young as three or four years old, and elderly people as high as eighty or ninety years old, may become the target group of correction. 

You should seek answers from a professional orthodontist if you are able to correct.