Ordered teeth guard in April 2020, process was good, guard fits well, however a disgusting foreign substance must have fell into my teeth guard during the manufacturing process, and is embedded in the guard. I couldn’t wear it for that reason, but it was my fault for not returning it immediately. My teeth grinding was pretty light then, so I just didn’t bother with it. In October 2021, I notified ProTeeth of this situation, but was told they only keep the mold for one year, so they couldn’t do anything for me, and that had I notified them earlier they would have redone the guard. Yes, my fault for not doing so, but I thought the situation was so unusual and ‘bad’ for lack of a better word, that they would do something to remedy the horrible situation. They did offer me 25% off, but I don’t think that is a satisfactory offer, considering the situation.