You can skip this step if you’re using this method after a soap-and-water cleansing.
It’s best to avoid toothpaste for this method. Even toothpastes formulated for sensitive teeth can cause abrasions on flexible plastic. Abrasions provide hiding places for bacteria that can lead to oral infections. [7] X Research source
Avoid a metal container. The acid in the vinegar could corrode the container and leave deposits on your bite guard. [9] X Research source
Don’t keep the bite guard in any liquid longer than an hour. Extended soaks can damage the material. [12] X Research source
