Patient question: disease: orthodontic loose retainer wear three years, the teeth are still loose description: orthodontic retainer wear three years teeth are still loose, a day without wearing again is very tight, teeth will rebound? Hope to provide help: Is there any hope that the teeth can be fixed? If not, what should I do? Reply: Hello! In your case, you may be wearing the retainer in the wrong way, or the retainer is deformed. Wearing retainers have certain requirements: 1, just after the removal of braces for six months to one year should be worn all day, after six months at night, and then every other night for six months, and finally 1-2 times a week until no longer tight feeling. 2, individual cases are recommended for long-term wear. 3, when not worn during the day to soak the retainer in cool water to avoid heat, pay attention to clean. 4, wear the retainer period should also find a doctor to regularly review: according to 1 month, 3 months, half a year time review.