It is a vital part of my daily practices. I prep my trays and dance for 10 to 15 minutes. I am sure it has been a big plus in my overall health.On rare occations where I wake up in the night with tooth pain I will put in the trays for 15 minutes and wake up pain free.I won't do without my Perio.GratitudeKAP Young 1511 Oneida Pl Oxnard Ca 93030.