What instrument is used to measure endo files?

The endo measuring device is specifically designed to measure the length of endodontic files, which are used in root canal treatments. This instrument helps clinicians determine the working length of the canal, ensuring that the file reaches the appropriate depth for effective cleaning and shaping. Accurate measurement is crucial in endodontics to avoid under-preparation or over-instrumentation of the root canal system.

The other options serve different purposes in dental procedures. For instance, a root canal sealer is utilized to fill any space left in the canal after the pulp has been removed and the canal has been shaped. An endo explorer aids in locating canals and assessing their condition but does not measure file lengths. Lastly, a gutta percha spreader is used during the obturation phase to compact gutta percha material within the root canal, rather than measuring files. Hence, the endo measuring device is the appropriate instrument for measuring endo files.