In the long human effort to care for the body's smallest and most overlooked spaces, Dyson has arrived at the bathroom with an $800 toothbrush fitted with a camera, artificial intelligence, and the full weight of its brand mythology. The CameraJet launched in September 2026 to viral enthusiasm and immediate sellouts, promising to film, analyse, and correct the way people clean their teeth. Yet dentists urge patience, noting that the excitement outpaces the evidence — and that the essential features of good oral hygiene have long been available for a fraction of the price.