I dread dentistry. It’s painful, undignified and frighteningly expensive – having a tooth replaced with a cap or bridge can cost a month’s salary, and it’s never as good as the real thing. So I’m hoping this ultrasound device that stimulates the regrowth of dental tissue works out well, and heads to these shores as soon as possible. Anything that means I could avoid having root canal surgery for a third time is more than alright in my books.