Table 4. The Comparison of Groups Based on the Games-Howell Post Hoc Test at a Depth of 50 μm .

Group I	Group II	Difference	P value
Group I	Glass ionomer	-12.5952	0.000
Control	Bioactive glass	-7.9647	0.012
Control	Laser	-20.0524	0.000
Glass ionomer	Bioactive glass	4.6305	0.190
Glass ionomer	Laser	-7.4571	0.166
Bioactive glass	Laser	-12.0877	0.012