According to the manufacturer, this design
keeps the file centered in the canal, reduces the torque
requirements, and increases the flexibility of the file.
Flexibility
The manufacturer states that the flexibility of
many nickel titanium files is hampered by the use of
radial lands, which are incorporated into the files to
help keep them centered in the canal. According to
Brasseler USA, the alternating contact point design
of the EndoSequence files increases flexibility and
reduces torque requirements.
When the 10 dentist evaluators were asked to
rate the Brasseler EndoSequence files on flexibility,
80% rated them as excellent to very good; the
remaining evaluators rated them as good.
Commented 1 evaluator, “I think the cutting and
flexibility of the files are great.”
Cutting Efficiency
According to Brasseler USA, EndoSequence files
are electropolished to remove imperfections that
might lead to separation and cracking.
The result, claims the manufacturer, is
a sharper, cleaner, and more durable
file, which will lead to better cutting
efficiency.
The evaluators were asked to rate the
cutting efficiency of the EndoSequence
files. Ninety percent of the evaluators
rated them as excellent to very good.
One evaluator said, “Polished [files] definitely
make a difference.”
Ease of Use and Training/Instructions
When the dentist evaluators were
asked to rate the EndoSequence System
on ease of use, 7 rated it as excellent
and 3 rated it as very good. When
asked about the instructions that
accompany the system, the 8 evaluators
rated the system as excellent to very
good and 2 rated it as good.
One evaluator noted that, “As a GP,
the learning curve and the risk of using
a new rotary system is difficult. The
EndoSequence design has shortened my
learning curve tremendously.” This
evaluator went on to say that the
“EndoSequence courses are complete
and are stimulating to the novice and
the experienced user.” Another evaluator
commented that the “handpiece is
user friendly. Ease of use is critical and
it definitely handles nicely.”
Rechargeable Handpiece
The rechargeable handpiece in the
EndoSequence System received somewhat
mixed reviews. Sixty percent of the
evaluators rated the handpiece excellent
to very good, but some of the individual
responses indicated some dissatisfaction
with the charge time of the handpiece.
One evaluator commented that he “was
not particularly impressed with the
charge time.” Another evaluator said,
“We have to place new rechargeable batteries
in order for it to consistently have
good torque. I'm not sure if this is excessive
as I do not have another rotary system
to compare it to.” However, another
evaluator said, “Nice handpiece…lightweight,
holds a charge well.”
Overall Satisfaction
When asked about their overall satisfaction
with the EndoSequence System, 5
evaluators rated the system as excellent
and 5 rated it as very good. One evaluator
summed up his evaluation by saying,
“The design of the file is second to none
and even to this day with all the variations
in design, it is my ‘go to’ system.”
