Musings on optics, physics, astronomy, technology and life

One weird thing about me: I’ve got a phobia when it comes to dentistry. I don’t mind any other medical procedures — I made my first blood donation at the tender age of 17, and I have experience with the other end of the needle too (I had to give one of my cats insulin shots for the last 14 months of his life). But dentistry … give me the good (legal) drugs, please.

So I’m always happy to read of products that can reduce the time spent in the dentist’s chair, such as the report of a faster-hardening composite material for fillings. The Austrian researchers say that the new composite material contains a tiny amount of germanium and can be “cured” in thicker layers, which means that your dentist doesn’t have to alternate as much between packing the material into the tooth and holding up the little blue light that photoactivates the material.

I haven’t investigated this further, and I suppose that U.S. officials will have to approve the material before it can be offered to dentists on this side of the Atlantic. Still, I have some old fillings that will need replacement eventually, so I’ll keep this in mind.

(I really wish I could face the laser rather than the noise and vibration of the drill, but my dentist tells me that the presence of my old fillings makes it impossible to drill with a laser. Apparently, lasers are only for teeth that have never had cavities.)

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