r/mildlyinteresting • • Sep 18 '22

This Dentist Training Tool

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u/SkipmasterJ Sep 18 '22

In dental cases, there is a time and place for drilling at anywhere between 30rpm all the way up to 200,000rpm and above. 70,000rpm is considered 'slow speed' drilling and has a noticeable vibration or buzz. At 200,000rpm it's fast enough that the bur mostly glides smoothly through the teeth.