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A dental drill or hand piece is a hand-held, mechanical instrument used to perform a variety of common dental procedures, including removing decay, polishing fillings, performing cosmetic dentistry, and altering prostheses. On January 26, 1875, the first electric hand piece was patented by American dentist, George Green, a development that revolutionized dentistry! | William S. Darr, D.D.S. General and Cosmetic Dentistry

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