Biomedical Engineering Reference
In-Depth Information
adhesive system, etching procedures were conducted using 37 % phosphoric acid (3M ESPE,
St. Paul, MN, USA) for 15 seconds followed by rinsing with a water spray for 15 seconds,
and blot dried, and bonded and light curing for 15 seconds. In the Clearfil SE bond system, a
primer was applied to the dentin surface for 10 seconds followed by bonding and light
curing, as shown table 1.
After light curing the bonding resin, a Teflon tube (GI tech, Seoul, Korea) with an inner
diameter of 2 mm and a height of 2 mm was attached to each dentin surface and filled with
A3 Body Shade of the hybrid composite Resin (Filtek Supreme Plus 3 M ESPE, MN, USA)
followed by light curing for 40 s. After light curing, the teeth were stored in water at 37°C
for 24h before the Shear Bond Strength (SBS) Test.
Brand name
Manufacturer
Material type
Composition
Application
procedure
Clearfil SE
bond
Kuraray, Tokyo,
Japan
Self etching
adhesive system
Primer: MDP,
HEMA, N,N-
Diethanol p-
toluidine, water
Bonding resin:
Bis-GMA, CQ,
HEMA, MDP,
Micro filler
Apply primer
and leave 20
seconds, air
blow, apply
bonding system
Single bond
3M ESPE, St. Paul
MN, USA
Etch and rinse
adhesive system
Bis-GMA, HEMA,
Water, UDMA,
Ethanol,
Polyalkenoic acid
copolymer
Acid-etch for 15
seconds, rinse,
apply adhesive,
gentle air blow,
light curing for
10 seconds.
Table 1. Materials used in this study.
Adhesive system
Laser intensity
Single bond
SE bond
Control (no laser)
Group A
Group D
1.4W
Group B
Group E
2.25W
Group C
Group F
Table 2. Classification of the experimental groups.
2.4 Shear Bond Strength (SBS) test
Before loading, the tube mold was removed carefully with a sharp blade and the specimens
were then placed in a custom-made fixture mounted on a Universal Testing Machine
(INSTRON Model 5562, Norwood, MA). The specimens were loaded to failure under
