Bests & Worsts Reviews from Amazon

Honestly is worth its weight in gold. I understand it might not work for everyone but even so these work very well as teeth whitening trays also and bite blocks for teeth grinders. I noticed the difference in my bottom teeth quickly but not in my upper teeth until I took my after photo. My teeth are still not perfect but I paid $10 at the time and definitely got more than my moneys worth. My facial structure has also improved noticably. I'm less ugly now because of this device. In the begining it wasn't easy but now I don't mind it. I hardly used the hard tray so my results would have been even better if I followed instructions perfectly. I've worn the soft tray over night for 14 months now. It has gotten considerably worn and will order another one soon. Great value.