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ISO 2157:2016

Dentistry - Nominal diameters and designation code numbers for rotary instruments

ISO 2157:2016 specifies the nominal diameters of the working parts of dental rotary instruments, for example burs, laboratory burs, grinding instruments, diamond instruments, mandrels and the corresponding designation.

Excluded are the diameters of endodontic instruments and scaler tips.

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International Organization for Standardization [iso]

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