| Summary: | This study aims to determine differences in the amount of shear bond
strength on the attachment of composite resin in sandwich restorations to
conventional glass ionomer cement and resin modified glass ionomer
cement.
The subjects of this study using 20 pieces of specimens of glass ionomer
cement. The specimen was divided into 4 groups, consisting of two groups
of conventional glass ionomer cement (Fuji II and Riva) and two resin
modified glass ionomer cement group (Fuji II LC and Riva LC). Each group
consisted of 5 specimens, which are printed using a mold made from Teflon
with a diameter of 6.5 mm with a height of 2.5 mm, cylindrical.
Conventional glass ionomer cement group performed administration of acid
etching for 20 seconds before the process of bonding material, whereas the
glass ionomer cement group modified resins are not made the process of
acid etching. resin composite specimens using a Teflon mold with a
diameter of 6.5 mm with a height of 3mm which together with brass rings
and light-cured for 20 seconds. Specimens stored in incubator for 24 hours
at 36 ° C. Furthermore, all specimens are tested research will test by sliding
force using a universal testing machine with a speed of 0.5 mm per minute.
The results obtained by the average magnitude of shear force required to
remove the conventional glass ionomer cement specimens of composite
resins of 3.908 MPa (Fuji II) and 3.124 MPa (Riva). The amount of shear
force to remove the resin modified glass ionomer cement to composite resin
of 9.424 MPa (Fuji II LC) and 8.896 MPa (Riva LC). These results indicate
a significant difference based on test one way Annova (p <0.05) and to
know the difference between groups and within groups used Tukey post hoc
test. The results of this study have significant adhesions between the use of
conventional glass ionomer cement and resin modified resin composite in
sandwich restoration. Adhesion strength between glass ionomer cements
modified resin is greater than the conventional glass ionomer cement, to the
resin composite.
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