3
The HEROfill
®
Obturator plastic carrier is slightly tapered. This ensures adequate back flow of the
heated Gutta Percha. The length of the carrier is 24 mm. The coronal part has length indication for
each mm (18-23 mm).
The coronal 6 mm of the carrier is hollow to accommodate the metal insertion pin. A rubber endo
stop is provided to indicate the working distance measurement. The plastic carrier and Gutta Percha
are radiopaque.
2. A step-by-step guide
After having ideally used the One Shape
®
or Revo-S
™
methods for shaping and before using the
HEROfill
®
Obturator, assure that you have achieved the following:
• A properly cleaned and shaped canal – the key to any successful root canal filling.
• A dry root canal.
• An established working length. The plastic carrier is flexible enough to negotiate curved canals. It is
highly recommended that rotary files with a higher conicity are utilized to create a sufficient taper
for the HEROfill
®
Obturator. When using files with a conicity of 2%, it is advised to combine them
with a procedure using Gates Glidden Drills, orifice openers (ENDOFLARE
®
for example) or similar
files which can be used to create a sufficient opening in the coronal part of the canal. The use of
HEROfill
®
Verifiers is recommended.
STEP 1: Determine the working length and choose the proper HEROfill
®
Obturator size
The working length is measured all the way to the apex
(A1)
. We recommend measuring the working
length from the edge of the cusp. The working length may be determined by use of x-ray, file and
electronic apex locator. Generally, the appropriate size HEROfill
®
Obturator will be the same size as
the last file used at the apex of the canal.
Tip: For very narrow and/or highly calcified canals, it may
be useful to select one size smaller than the last file used at apex.
If you do not use rotary files with a taper of 4% or more, you should always verify the size of the
cleaned root canal with a HEROfill
®
Verifier before inserting the HEROfill
®
Obturator.
Mark your working length on your HEROfill
®
Obturator. When the HEROfill
®
Verifier has a slightly
loose fit in the apical third, the rubber stop is placed at the working length. Afterwards, the working
length is transferred to the HEROfill
®
Obturator.
STEP 2: Heating of the HEROfill
®
Obturator
Place the selected HEROfill
®
Obturator in the HEROfill
®
Oven and activate it
(A2, A3)
. For more
information on how to use the HEROfill® Oven, please consult the HEROfill
®
Oven Operating
Instructions.
STEP 3: Application of sealer
While the HEROfill
®
Obturator is heating, mix any heat resistant sealer (usually a non-eugenol sealer
– MM-Seal
™
recommended) with long working time. Make sure that the root canal is completely dry
before applying the sealer.
Place a very thin coat of sealer on the wall of the canal. Too much sealer is neither desirable nor
necessary. Utilize a Paper Point (MM Paper Points recommended) or a HEROfill
®
Verifier to apply a
thin layer of sealer on the canal walls. When obturating multiple canals, apply sealer in all canals at
once.
STEP 4: Insertion of the HEROfill
®
Obturator into the canal
When the heater indicates that the HEROfill
®
Obturator is ready for use, the HEROfill
®
Obturator is
removed from the HEROfill
®
Oven. For further information on how the HEROfill
®
Oven works, please
consult the appropriate heater manual. Without twisting the handle, immediately insert the
HEROfill
®
Obturator into the canal to the working distance using firm and steady pressure
(A4)
.
