What to do to keep my night guard from smelling?

Clean after each use: Night guards may be constructed from hard plastic, soft rubber material or a combination of the two. Use cool water only, as hot or warm water may warp the guard and affect the fit. Use clear antibacterial soap and rinse thoroughly, dry completely before placing into a clean case for storage. (tinted colored soap may discolor the guard) keep away from children or pets, choking hazard.

Antibacterial tabs.: There are large verities of antibacterial cleansers in the market, otc in your druge store that you can use to prevent bacteria from nesting in the pores of you night guard

Use OTC rinses: There are many otc rinses you can use to help with your guard smell. Before doing any abrasive actions, just make sure you speak to your dentist on all options, but placing them in certain cleaners, like in a cup, should generally help.

Nightguard cleaning: Have a routine hygiene visit at your dentist and let them clean your night guard in an ultra sonic cleanser. Next, make sure that you brush your night guard each day with a toothbrush and toothpaste and store it, when not in use, in fresh listerine or equivalent antibacterial mouth rinse.

Deep cleaning: Use a mixture of vinegar and hydrogen peroxide. Soak the night guard for at least 45 minutes.

Clean it: Plastic is porous, and therefore a refuge for all sorts of creepy crawlies. Morning and night when the appliance is out for tooth brushing, brush it with toothbrush (no toothpaste...it scratches plastic). During the day when you are not wearing appliance put it into a glass or small bowl, cover with room temperature water, drop in a Denture Cleaner tablet.