The next camera you point at your mouth may not be your phone — it could be your toothbrush.

Dyson has built a camera into its new CameraJet toothbrush, but the camera isn’t there just to give users a disturbing close-up of their teeth. It feeds live images into a machine-learning system that identifies gaps between teeth and triggers a targeted burst of mouth rinse when the brush reaches those gaps.

The device analyzes images of the mouth using a 100,000-pixel camera, enabling its Gap Optical Targeting system to detect, track, and predict interdental gaps in real time.

That makes CameraJet more than a toothbrush with a camera attached. It can…

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