(1)Stain removal: Activated charcoal is believed to help remove surface stains on teeth, contributing to a brighter smile.

(2)Odor control: Charcoal is known for its ability to absorb and neutralize odors, which may extend to helping control bad breath.

(3)Antibacterial properties: Some proponents claim that charcoal has antibacterial properties, which could be beneficial for oral hygiene.