Source of Support: None, Conflict of Interest: None
Check
The aim of this in-vitro study was to determine whether the duration of light activation on light cured Glass lonomer Cement has an effect on it’s bonding to resin composite. 30 acrylic blocks were made having a hole of 6mm diameter and 3mm depth in which a light cure glass ionomer cement was placed. They were divided into 3 groups of 10 each and light cured for 20, 30 and 40 seconds respectively. Bonding agent was then applied and Composite resin cylinders of 4mm diameter and 4mm height were built up with a template in two increments. The specimens were tested for shear bond strength. Statistical analysis was done by One-Way ANOVA and Tukey-HSD (P<0.05). RESULTS: The mean shear bond strength of Group I was 14.08 MPa, Group 2: 16.9 MPa, and group 3:22.8 MPa, Group 3 showed the highest bond strength. There was statistically singnificant bond strength difference between group I and group 3 (P- value 0.004).
