Are night braces a reinfection risk?

Hi, I have to wear braces for my teeth every couple of nights. I haven't worn them during the treatment (which i just finished) and I really need to wear them again soon or they wont fit anymore.

Problem is, im afraid that they might carry h pylori? Since h pylori can be spread through saliva, and these were in my mouth for nights when I had it.. im scared there might be h pylori on them and it'll reinfect me.

Could they carry h pylori? Or should it be safe because I haven't worn them in two weeks?