Dental handpiece, bur mount operating system -
1992-12-15 · A dental handpiece provided with a handle and a head on one end thereof in which a turbine rotates at high speeds and accommodates a cutting bur having an axial through opening to direct a preferably hygienic coolant directly through the cutting end of the bur, while the opposite end of the bur, on the interior of the head, is highly polished and absolutely flat for rotating engagement with one …
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