Your Toothbrush Is Shedding Microplastics Into Your Mouth
NonToxCo Research
Science & Safety Team · 4/7/2026
Your toothbrush, your toothpaste, and even your dental fillings are shedding microplastics directly into your mouth. Twice a day, every day.
Dental Products Are a Hidden Source
A 2026 review in Adv Colloid Interface Sci catalogued the oral sources of micro- and nanoplastics. The list includes toothbrushes, toothpastes, orthodontic appliances, dental composites, prostheses, implants, and impression materials.
Your mouth is the first stop for these particles. And it's not just passing through. The oral cavity is a sensitive biological interface where real damage starts.
What Microplastics Do in Your Mouth
The review linked oral microplastic exposure to gingivitis, periodontitis, peri-implantitis, denture stomatitis, oral cancer, and dry mouth. These particles trigger oxidative stress, inflammation, immune disruption, and changes to your oral microbiome.
Once they cross the oral and gut barriers, they accumulate in distant organs. That feeds into chronic inflammatory and metabolic disorders throughout your body.
Simple Swaps to Cut Exposure
Switch to a bamboo toothbrush. Choose toothpaste without plastic microbeads. Ask your dentist about newer, lower-shedding composite materials. And pay attention to the personal care products you put in your mouth every day. Check out non-toxic kitchen alternatives to reduce plastic in your daily routine.
Also see glass food containers for safer alternatives.