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Old August 29, 2020, 10:44 AM   #30
Senior Member
Join Date: February 22, 2008
Location: SW Washington state
Posts: 1,798
Way before that

The high speed turbine handpiece was invented in the early 60's, may have even been a touch earlier. It's not new technology by any measure.

What is fairly new is the lower cost of diamonds. High quality diamond burs (the cutter) used to cost 5 bucks each. They are now about one dollar each.
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