Dr Ng Tze-chuen (left) and Prof Jin Lijian showing enlarged models of their NJ Toothbrush. Photo: Handout

Toothbrush harder to build than Mars rover part is ‘breakthrough’ in dental care, Hong Kong inventor says

  • Ng Tze-chuen gained fame for his gripper tool on the Beagle 2 Mars lander, and has now co-designed a toothbrush targeting all dental surfaces
  • Duo claim product can prevent gum disease
Topic |   Hong Kong innovators

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Dr Ng Tze-chuen (left) and Prof Jin Lijian showing enlarged models of their NJ Toothbrush. Photo: Handout
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