Table 1.

Mean marginal infiltration in mm (±SD) of methylene blue dye. (n=24)

Group	n	Mean ( ± SD)	Median	Range of variables
Er,Cr:YSGG laser (GI Test group)	24	0.8 (±0.53)	0.65	.209-1.62
Unlased (GII)	24	0.97 (±0.54)	1.06	.47-1.14