> Dentistry: can we replace dental x-rays with infrared?
There's a US company that has an ultrasonic "x-ray". Signal processing is used to find cracks and cavities. It's not well-known yet even to Bay Area specialists.
Do you have a link where I could read more? Because it sounds like you're describing a thing that's been around for like a decade, that I've seen in use in (my region). But I may just be comparing apples and oranges under a too-vague description.
There's a US company that has an ultrasonic "x-ray". Signal processing is used to find cracks and cavities. It's not well-known yet even to Bay Area specialists.