Measuring & Marking Instruments

About measuring and marking instruments

Measuring and marking instruments are the rulers, gauges and stops used to set a measurement and hold it at the chair, with no power supply. The FDA lists a dental depth gauge instrument among dental hand instruments, hand-held devices intended to perform various tasks in general dentistry and oral surgery, classed as Class I (21 CFR 872.4565).

Reads or holds a measurement by hand, with no power supply and no electrode.

Sources: FDA 21 CFR 872.4565, Dental hand instrument