Retainers are actually the following cases: 1, lingual fixed retainers, which can actually be worn completely for eating, because it is on the lingual side, and the patient’s tooth surface is better fit. This kind of retainer does not need to be removed, because it is fixed, usually just to maintain good oral hygiene can, this can wear it completely for eating; 2, movable retainer, such as pressure film type, wire type, is not recommended to wear eating, because the process of eating, the stress on the retainer will produce damage, even if the thickness of the pressure film type retainer is more uniform, if in wearing when eating Even if the thickness of the retainer is uniform, if you eat while wearing the retainer, it is actually artificially cushioned on the back teeth, resulting in the patient’s stress being on the back teeth, which is very likely to cause fracture problems, and the chewing efficiency is not particularly high. Many patients worry about the time to eat causing recurrence problems, but in fact, we do not have to worry about this problem. Because the time to eat is relatively short, most of the time wearing a retainer, because each person really teeth contact every day, and the pressure of the time, really does not add up to more than ten minutes, so the time to eat need not worry at all, unless it takes a long time, for example, to attend a banquet, may participate in a longer time, you can wear, can Drink water, eat something simple, can not eat something too hard.