Hydraulic turbine contra-angle handpiece Ys
2014-10-20 · diameters of the dental cutting tools make it necessary to turn the instru ments at high rates of speed in order to obtain effective linear speeds for the re moval of enamel. For example, a Ys i~ch (22.2 mm.) disk rotating at 1,000 rpm has the same linear or surface speed as a 5/32 inch ( 3.9 mm.) disk dental …
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