Table 3.

Intergroup statistical comparison of alkaline phosphatase (ALP) assay

					95% C.I
Group	Mean	SD	Median	P-value	lower	upper
LiSi2-ZrO2	86.637	25.464	78.663	.301	−23.050	90.055
LiSi2-NiCr	55.871	54.594	42.875	.003**	38.481	151.587
LiSi2-CoCr	86.092	32.645	88.011	.278	−21.960	91.145
ZrO2-NiCr	39.120	34.316	35.606	.034*	4.979	118.085
ZrO2-CoCr	69.341	21.857	69.608	1.000	−55.462	57.643
CoCr-NiCr	38.575	39.149	21.884	.037*	3.889	116.994

* p < .05, ** p < .01