At the end of its life cycle, simply remove the bristles with pliers or detach the head with secateurs, sending that component to landfill, while placing the bamboo handle in the compost or green waste bin where it will break down within months.
Please change your toothbrush every 3 months.
According to the National Geographic report, “And if everyone around the world followed those recommendations, about 23 billion toothbrushes would get trashed annually.”
If that estimate is accurate, then ~730 disposable toothbrushes would be thrown away every second. Did you know that it takes 400 years for a toothbrush to break down? That means even the first toothbrushes, which were made in the 1930s, are still buried somewhere. If that's not mind-bending enough, according to National Geographic you're likely to use around 300 toothbrushes during your lifetime. And that's just you.
For every toothbrush purchased one is donated to someone in need