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Originally Posted by wolfman
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Dentists used to use Novocaine, exclusively, but patients began to react to the preservative. Different preservative in Xylocaine/Carbocaine - less adverse reactions.
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I had a housewife complain three years ago about the cattle prod that I was using (20,000 volts).
So, I had to revert to things that were less painful. It makes the learning process so much slower than before. It's amazing how quickly you can change something with a little jolt of electricity.
