Page 10 - The Beauty and Sorrow in Endodontics (WL and C/S)

Fig A20

When transferring the working length from one file
to the other, the larger file will need to be pre-
curved to the same degree as the smaller used file.
Then holding them side-by-side, adjust the rubber

stopper to mark the working length.

Fig A21

As the canal is being shaped and

straightened, the working length will
decrease. This image shows the files
used after shaping the same canal.

Fig A22
When the master cone is fitted and an

appropriate tugback is achieved, mark the cone
at the external reference point with a cotton
plier. Then place this cone side by side with the

master apical file and compare their lengths
prior to taking the cone fit radiograph. This
allows for a quick comparison without the need
for an endo ruler to verify the working length.

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