A nifty gadget promises to give gap-toothed hockey and rugby players a healthy new smile. It’s an ultrasound transmitter that fits neatly inside a person’s mouth like a brace and could help to regrow damaged teeth.
Jie Chen and Ying Tsui, engineers at the University of Alberta in Canada, developed the miniature device after ultrasound stimulation encouraged damaged teeth and jawbone tissue to regrow in animals.
Tarek El-Bialy, who works in Alberta’s medical faculty, was able to regrow teeth in rabbits with a larger device, but only when some tooth root remained in place.
The ultrasound device could help those…
