Table 2.

Means and standard deviations for shear bond strength (Mpa).

Study groups (n = 10)	SBS (Mpa) (mean ± SD)	p Value*
1 (CGIC)	3.01 ± 0.79a	<.001
2 (CGIC + 1% GO)	5.30 ± 0.48b
3 (CGIC + 2% GO)	5.42 ± 0.60b
4 (RMGIC)	5.53 ± 0.55b
5 (RMGIC + 1% GO)	7.84 ± 0.83c
6 (RMGIC + 2% GO)	8.01 ± 0.97c

Note: The mean values of the different letters were statistically significant (post hoc Tukey's test).

Abbreviations: ANOVA, analysis of variance; CGIC, conventional glass ionomer cement; GO, graphene oxide; RMGIC, resin‐modified glass ionomer cement; SBS, shear bond strength.

^*Two‐way ANOVA.