We clean our teeth twice a day and that means efforts to reduce our use of plastic in the bathroom will have a sizeable impact. Here are seven things to consider when choosing greener alternatives. A wooden or bamboo handle? Brushing your teeth more sustainably goes beyond what the handle of your toothbrush is made of – but there are many options on the market, beyond simply wood and bamboo. Consider the range of options when it comes to bristles, too. “You can now get toothbrushes without nylon bristles, with the brush part made of renewable raw materials, such as castor oil,” says Professor …