I broke my invisigline retainer straight down the middle of the lower. Can I just fix it or use it. (photo)

Hello there,I would recommend making an appointment with your dentist to have a new retainer made. Your teeth may shift if your continue wearing your retainer as is long term. The cost of a new retainer now is much less than what you'll end up paying to have your teeth realigned if they shift. Good luck and I hope this helps. Follow me if you have more questions.Sarah Thompson, DMDSt. Louis, MO area (O'Fallon, IL)Real Self 100

When an invisaling retainer breaks down the middle it cannot be functional anymore.  A new retainer will need to be ordered. The good thing is that invisalign has your model so you don't need to get a new impressions.

If it broke down the middle, it probably won't be able to be fixed.  Have your dentist order you a new one, there most likely will be a fee.Best of luck!