“I was pretty displeased with this product when first received. I followed the directions step-by-step and the grillz (top and bottom) would not stay locked onto my teeth. My wife suggested that I use Denture Adhesive Cream to keep them in place, which worked great.Very happy with the product now.”
We are sorry you experienced some issues forming. We have the instructional video here. It can be remolded.
https://www.youtube.com/watch?v=yWyMaN_IYHs