In one 2018 studyTrusted Source involving 50 patients, individuals were instructed to brush their teeth with both charcoal and standard brushes for 1 week each. Researchers found that the charcoal toothbrushes had fewer bacteria on them than the regular toothbrushes did after 1 week of use, and that the non-charcoal toothbrush retained almost twice the amount of bacteria than the charcoal toothbrushes did.
If you want fresh breath, you’ll need a toothbrush that removes plaque.
One recent studyTrusted Source found that charcoal toothbrushes accomplished just that. Twenty-five people were instructed to brush their teeth twice daily after meals with both a nylon brush and a charcoal brush.
The charcoal bristles were found to remove more plaque than a regular toothbrush after 6 weeks of use. The charcoal bristles were also less worn than the regular toothbrush at the end of the study.
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