Researchers at Trinity College Dublin in collaboration with Eastman Dental Institute at University College London for the first time researched the life-cycle assessment of the toothbrush. Researchers looked into both the environmental impact and human health impact of the toothbrushes.
Four types of toothbrush were reviewed:
- Plastic manual: plastic handle with fixed head
- Bamboo manual: bamboo handle with fixed head
- Plastic manual replaceable head: reusable plastic handle (made from a bio-plastic) with replaceable heads
- Electric: handle and charging unit, with replaceable heads
Researchers found the most environmentally sustainable toothbrush is the recycled plastic toothbrush.
Read the original story here.