| Summary: | A kind of restoration adhesive failure is a gap between the restoration and the
tooth structure, known as microleakage. Microleakage is influenced by particle size
of restoration. Aim of this study is to compare the microleakage of conventional resin
modified glass ionomer cement and nano resin modified glass ionomer cement in
restorating deciduous teeth.
Laboratory experiment was performed in 20 post extracted incisive deciduous
teeth. The cavity was made by round bur, diameter 2,5mm. All of the teeth got
separated into 2 groups. Group 1, 10 teeth were restorated with conventional resin
modified glass ionomer cement and group 2, 10 teeth were restorated with nano resin
modified glass ionomer cement. All teeth were then subjected to thermocycling. Each
of tooth was covered with nail polish and the apices of all of the teeth were sealed
with sticky wax. All of the teeth were immersed in blue dye and then they were
sectioned labiopalatally. The specimen were then studied under stereomicroscope
with a magnification 60x.
Measurement of the depth of the blue dye infiltration was analyzed by
independent sample T-test. It was known that there were significant correlation
between microleakage of the teeth that were restorated with conventional resin
modified glass ionomer cement and the teeth that were restorated with nano resin
modified glass ionomer cement.
Conclusion, conventional resin modified glass ionomer cement showed lower
microleakage than nano resin modified glass ionomer cement in restorating deciduous
teeth.
Key words: microleakage, conventional resin modified glass ionomer cement, nano
resin modified glass ionomer cement
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