Specifically to retainer cleaning, there is a huge difference between something that's in your mouth for 6 seconds daily and something that's in there for 16 ho

Specifically to retainer cleaning, there is a huge difference between something that's in your mouth for 6 seconds daily and something that's in there for 16 hours. Retainers need constant cleaning to not smell like death. Your toothbrush does not, though it's in your mouth for longer than this one would be (seriously, go smell it. it's probably fine.).