What age orthodontics is not the problem, and loose teeth are even less due to orthodontics. Periodontal disease is the culprit of loose teeth. You spend time and money on orthodontics, have a mouthful of straight teeth, but just do not brush and floss properly, do not go to regular dental cleaning, full of tartar, tartar, bleeding gums, recession, alveolar bone resorption leads to loose teeth and finally fall off, you can conclude that orthodontics will make teeth loose? If you don’t care for your teeth, your teeth will loosen and fall off without orthodontics.