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Dental curing light
Topic Started: Jul 12 2018, 07:25 AM (48 Views)
Copper
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Shortstop
I chipped a tooth a few days ago and had it fixed yesterday - no big deal.

But I saw an interesting new device. For years the dentist has been curing the resin based composite used in a filling with a blue light. The blue light causes the paste to harden.

The interesting new twist is that before he put the paste in yesterday he turned on an overhead Yellow light. It turns out that the ambient light in the room contains a component of Blue light that begins the curing process immediately.

By using the Yellow light he stops the unwanted curing caused by normal background light until he is ready to cure it. This allows him a longer amount of time before he has to do the curing.

At least that is how I understood the explanation, I thought that was interesting.

https://en.wikipedia.org/wiki/Dental_curing_light


The Confederate soldier was peculiar in that he was ever ready to fight, but never ready to submit to the routine duty and discipline of the camp or the march. The soldiers were determined to be soldiers after their own notions, and do their duty, for the love of it, as they thought best. Carlton McCarthy
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