Dental Handpieces - Dentalkart.com
Various authors has given various classification of handpieces based on their speed. some are given as follows: ACCORDING TO STURDEVANT : Low or slow speed - below 12,000 rpm; Medium or intermediate speed - 12,000 to 200,000 rpm; High or ultra-speeds - above 200,00 rpm . ACCORDING TO MARZOUK: Ultra -Low speed- 300 to 3,000 rpm; Low speed-3,000 to 6,000 rpm
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