Table 1.

Mean value of compressive strength of the studied groups.

Group I**	N	Mean	Std. Deviation	Std. Error Mean	P value* (Gp I A vsGp I B)
Gp I A	20	77.750	5.3715	1.2011	0.000
Gp I B	20	33.190	3.9867	0.8914	0.000

**Gp I A- Amalgomer CR.

**Gp I B- Fuji.

*P value ≤ 0.05 (Significant).

P value ≥ 0.05 (Non Significant).