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Directions:
For Root Canal Cleaning and Shaping
A
17% solution of EDTA helps decalcify
the dentin in the canal wall. This makes it easier to
remove dentin with files and reamers and helps the dentist
enlarge and shape the canal for final obturation.
-
Apply EDTA at entrance of
canal with pellet or pipette, and file and ream canal
in conventional manner.
- Reapply
EDTA as necessary until canal
is enlarged to the desired size.
- Rinse
canal thoroughly so that all EDTA
is removed from the canal.
For
Smear Layer Removal Prior to Placement of Endodontic
Posts
After
drilling a root canal for a post, the dentin walls of
the post preparation are covered with a smear layer of
dentinal debris. This smear layer can be removed by rinsing
the cavity with a 17% solution of EDTA.
- Prepare
canal to receive a post.
- Using
a pipette, rinse the canal with EDTA
and immediately evacuate the EDTA
with high suction for 10 seconds.
- After
10 seconds, rinse the canal with water and remove
excess water with paper points.
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