If you want to use retainer tablets, you’ll have to go through a number of steps. First, you need to drop a tablet into warm water. The temperature of the water is relatively important, as it can’t be too hot. The water should start to bubble, at which point you will submerge your retainer. You then wait a period of time while the retainer goes through a disinfection process, and finally rinse the oral appliance. You’re not supposed to let your retainer sit in the solution for longer than instructed, so you’ll need to carefully monitor the process at all times. Retainer tablets typically feature active chemicals like sodium carbonate, and they may also contain sodium bicarbonate – commonly known as baking soda.