While the 3D renderings look like something more appropriate for this month’s Halloween coverage, the idea of a customized 3D toothbrush is pretty interesting– Blizzident is just that (via Quartz):
All Blizzident-bristles are tailored to your own teeth. They are placed on the surface of your teeth in a 45 degree angle. They are also aligned exactly along your gumline in a 45 degree angle.
Additionally there are interdental bristles between all your teeth.
For tailoring we use a 3D model of your teeth (created from an impression or scan of your teeth by your dentist).
Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on code.org, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.