"Mouthwash, also called “oral rinse” or “mouth rinse,” typically contains antibacterial ingredients to clean between your teeth, as well as other ingredients that give it a flavor"
https://www.healthline.com/health/dental-and-oral-health/is-mouthwash-bad-for-you#Is-mouthwash-bad?
"Plaque is a sticky film of bacteria that constantly forms on teeth."
https://my.clevelandclinic.org/health/diseases/10953-plaque
"Silver nanoparticles (AgNPs) have been imposed as an excellent antimicrobial agent being able to combat bacteria in vitro and in vivo causing infections. The antibacterial capacity of AgNPs covers Gram-negative and Gram-positive bacteria, including multidrug resistant strains. AgNPs exhibit multiple and simultaneous mechanisms of action and in combination with antibacterial agents as organic compounds or antibiotics it has shown synergistic effect against pathogens bacteria"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8268496/
"New research shows that when exposed to a microbe-slaying silver solution, the germs can "go zombie," wiping out their living compatriots even after death. The results may explain silver's long-lasting antibacterial power and could improve the performance of medical products that keep us safe from harmful pathogens.
The use of silver in medicine dates back thousands of years, and scientists have long known that the metal is a potent antibacterial agent. Silver ions perform their deadly work by punching holes in bacterial membranes and wreaking havoc once inside. They bind to essential cell components like DNA, preventing the bacteria from performing even their most basic functions."
https://www.science.org/content/article/silver-turns-bacteria-deadly-zombies