Table 2.

Mean, standard deviation, minimum, and maximum of retention test results in Zr and ZLS groups

Group	Mean	Standard deviation	Minimum	Maximum	P value
Retention (N) (n = 14)
Zr	271.50	114.31	104.71	490.22	0.012
ZLS	654.67	223.17	222.74	1006.25

Zr, zirconia; ZLS, zirconium lithium silicate