Product Description
When so much time, effort,
and money is spent on cosmetic indirect restorations
by the dentist, the laboratory technician, and
the patient, the overall success of the restorative
procedure can hinge on the performance of the
cement itself. As a result, the selection of the proper
cement for the clinical application is critical.
Current options include, but are not limited to,
resin cements, glass ionomer cements, and resinmodified
glass ionomer (RMGI) cements.
While each cement option has clinical relevance
within the practice of dentistry, RMGI cements have
provided the best results when it comes to optimizing
the performance of a permanent cement.
First in Its Class
One of the most widely used and popular RMGI
cements is FujiCEM (GC America Inc). Originally
introduced in early 2001, FujiCEM was the first
paste-paste RMGI cement to be offered to dentistry.
Before 2001, the benefits of glass ionomer cements
in the forms of chemical bond and prolonged fluoride
release, could only be achieved through mixing
powder and liquid in a time-consuming and technique-
sensitive procedure. While manufacturers of
glass ionomer cements sought to minimize the challenges
of metering the proper ratio of powder to liquid
by introducing premeasured capsules, GC
America introduced a product that not only was
easy to dispense and mix, but also improved bond
strength and reduced procedure time.
Indicated for cementation of indirect
metal, porcelain-fused-to-metal
and resin crowns, bridges, inlays and
onlays, as well as for porcelain inlays
and post placement, FujiCEM is a versatile
and easy-to-use material. The
material is also ideal for the cementation
of zirconia all-ceramic crowns and
bridges. Its 1.4:1 mixing ratio is easily
controlled through the double barrel
Paste Pak Dispenser, which also allows
dentists to select the proper amount of
material to dispense, thereby minimizing
waste. Controlling the proper ratios
when mixing cement is critical as variation
can affect bond strength.1
Proven Longevity
In addition to the chemical bond the
material achieves by virtue of its formulation,
FujiCEM offers a coefficient of
thermal expansion close to dentin along
with high fluoride release, a low 3 μm
film thickness, and effectiveness in a
moist field. All of these physical properties
together contribute to patient comfort
and ultimately to the longevity of
the final restoration.
The material was also formulated to
be radiopaque, which assists with future
diagnostics. And, for those situations
when a higher bond strength is desired,
Fuji Plus Conditioner is available and
recommended for use before cementation
to achieve optimum retention. The
end result is a final restoration with
proven long-term retention, reduced
sensitivity, and improved resistance to
both microloeakage and decay.2,3
From Simple to Simpler
In 2007, GC America introduced a
new automix cartridge for FujiCEM,
which further speeds the cementation
procedure by eliminating the mixing
step while maintaining tight control
over the mixing ratio. A simple procedure
was made even simpler and more
reliable with merely a change in packaging
while maintaining the original
material formulation.
Whether a dentist chooses to use the
traditional Paste Pak Dispensing
System and hand mix FujiCem resinmodified
glass ionomer cement or the
newer automix delivery system, working
time and setting time remain consistent.
The material provides a generous
2 minute and 15 second working time
from the start of mixing, which is sufficient
for placing single units as well as
bridges. The set time is 4 minutes and
30 seconds from the start of mixing.
Excess material is easily cleaned up
with an explorer or other instrument
while in its gel stage between 1 minute
and 2 minutes and 15 seconds. One of
the benefits of the new automix delivery
system is the additional gain in
working time because the material is
ready for use when dispensing, and
time for mixing is virtually eliminated
from the working time of the material.
A Welcome Addition
For more than 6 years, FujiCEM
RMGI cement has been a preferred
material for cementation because of its
clinical benefits and ease of use. GC
America successfully addressed some of
the procedural concerns regarding the
successful use of glass ionomer cement
while maintaining its benefits. No single
cement is ideal for every type of restoration.
There will always be a need for
other clinical applications including the
cementation of temporary restorations
and veneers. However, FujiCEM offers
significant versatility when it comes to
seating indirect restorations and posts.
Considering its reliability in clinical use
because of its innovative formulation
and convenient packaging along with
the time savings, FujiCEM is a welcome
addition to any dentist’s arsenal of
cementation materials.
—Monica Roy-Smith
References
1. Behr M, Rosentritt M, Loher H, et al. Changes
of cement properties caused by mixing errors:
the therapeutic range of different cement types.
Dent Mater. 2008 Mar 25 [Epub ahead of print].
2. Yoneda S, Morigami M, Sugizaki J, et al.
Short-term clinical evaluation of a resin-modified
glass-ionomer luting cement. Quintessence
Int. 2005;36:49-53.
3. Ermifl RB. Two-year clinical evaluation of four
polyacid-modified resin composites and a resinmodified
glass-ionomer cement in Class V
lesions. Quintessence Int. 2002;33:542-5488. |
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