DenTek® has gone green! We've replaced our plastic handled brushes with these brushes made from a naturally derived, organic, plant-based resin and plant-based bristles. This ensures you get the same great DenTek® quality whilst being kinder to the planet. Dentists recommend daily interdental cleaning - To cleap the 40% of your tooth a toothbrush can't reach - To remove plaque, a leading cause of tooth decay of tooth decay - To help fight bad breath 1. Insert brush between teeth. 2. Use gentle back and forth motion to remove food & plague.