G
ENERAL
ADVICE
TO
TAKE
INTO
CONSIDERATION
FOR
REMOVAL
OF
FILLING
MATERIAL
»
take 2 x-rays from different angles
»
a precise appreciation of canal anatomy is very
important
»
fi nd entrance of canal and access the obturation
material
»
prepare, if needed, a cavity 1-2 mm (DR1) and
drop solvent to soften obturation material. If
necessary, use a heat plugger or ultrasonics.
C
ORONAL
THIRD
FILLING
REMOVAL
»
gently engage DR1 rotating at 1000 rpm (1.5 Ncm)
into the obturation material
»
the active tip of DR1 facilitates the initial penetration
»
don’t force the way, take out the fi le, clean it
regularly and re-insert
»
tip: clean and check the blade regularly
M
EDIAN
AND
A
PICAL
THIRDS
FILLING
REMOVAL
»
insert DR2 rotating at 600 rpm (0.7 Ncm)
»
don’t force the way, clean and check the blade
regularly
»
continue to advance apically as long as fi lling
material is visible on the fl ute
»
if needed, drop solvent to help removal of
obturation material
»
establish fi nal WL and fi nalise shaping with
standard NiTi RaCe fi le(s)
M
EDIAN
(2)
TO
A
PICAL
(3)
THIRD
C
ORONAL
THIRD
(1)
DR1
@ 1000 rpm
DR2
@ 600 rpm
Instruction manual
Desobturation Kit
Active tip
Safety tip
D-RaCe fi les are intended to remove fi lling materials,
such as gutta-percha, carriers, paste and resin-based
materials, prior to reshaping procedures.
