Studies show UV sanitisers can reduce bacterial load by up to 99% on toothbrushes. Soaking in antibacterial mouthwash: This method is effective in killing bacteria present on the toothbrush bristles.
The spotlight has recently been on apple cider vinegar's antimicrobial and antioxidant ... You can find these drinks from brands such as Bragg, Poppi, Remedy and Sidekick Sodas.