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  If your permanent retainer is broken or the glue came off, don’t worry as this is something that can happen. But keep in mind that you need to reach out to your orthodontist without delay within days. Permanent retainers have an important job of keeping the teeth aligned after braces or Invisalign. So, you sure don’t want your beautiful smile and straight teeth to be affected by a broken retainer. This article will help you know what causes permanent retainer breaking, what you can do about it, and how is it repaired or replaced by your orthodontist.   Why do permanent retainers break? A  permanent retainer  is a piece of metal wire that is bonded with composite resin to the back side of the teeth, in the bottom or top teeth. Permanent retainers can last up to 20 years with good care. However, they can also be prone to longtime wear and tear, getting debonded, or breakage. The main risk factors that cause a broken permanent retainer include: Biting into hard foods o