Page 6 - The Beauty and Sorrow in Endodontics (WL and C/S)

Working Length Determination

Fig A1

When determining the working length, it
is crucial to understand the anatomy and
terminology of the root apex.

Fig A2 Fig A3

During master cone The most apical tip
fit, the radiographic of the obturation

terminus is the should be at the
internal reference minor opening – the
point for measuring wet-dry intersected
working length. point on a paper

point test.

Fig A5
Fig A4 Since a horizontal
When checking the section of the apical

master cone fit, the portion of the canal
cone should slide is not a perfect circle,
smoothly to the after down-pack, the

radiographic terminus presence of white-in-
yet present with white dots at the
enough tug back. apex symbolizes a

proper apical seal.

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