A few months or years: Don't even attempt to wear an old retainer if it's been several months or years! It's very unlikely to fit, and it could become stuck, cause pain, and even potentially damage your teeth and tissues. Instead, schedule an appointment with your orthodontist and take your old retainer with you.May 18, 2021
Can I use my old retainer?
Old retainers may still be usable If the retainer is tight, we recommend wearing it anyway, even if it makes your teeth a little sore at first. After a few successive nights of wear, patients will find that their retainer fits much better and isn't as uncomfortable.
Can I wear my 10 year old retainer?
Generally speaking, you can use an old retainer to treat an unfortunate case of teeth relapse. If it's been over a decade since you've used the retainer, or your mouth has grown or your teeth have relapsed significantly, do not use an old retainer. Never try to force your old retainer in your mouth.
Can you force an old retainer to fit?
Never try to force your old retainer in your mouth. This can not only damage your retainer, but damage your smile too. If you have to exert any force to fit your retainer, see your orthodontist first and do not put it in your mouth.
Can I force my teeth back into my retainer?
Your teeth may have already started to shift back towards their original positions, and if you try to force your retainer in, you could hurt yourself. Your retainer should fit easily, so if you have to force it back on your teeth, it likely isn't a good fit anymore.