DENTISTS AND DECORATORS have teamed up to invent toothbrushes you’ll want to be seen with — at least twice a day. Reach by Design ($2.35) brightens up your bathroom with mod florals and stripes. The brush itself looks familiar, though: angled neck, multi-level bristles. RadiusSource ($7.95, right) is an eco-innovation. You grip a blob-shaped handle made from recycled flax, wood or dollar bills. It lasts forever as long as you replace the head. A downside: It won’t fit in your holder.