An In Vitro Study on the Shear Bond Strength of Feldspathic Porcelain to Nickel Chromium Alloy and Cobalt Chromium Alloy after Various Surface Treatments

Table 1

Overall comparison of shear bond strength of Ni-Cr alloy samples using ANOVA.

	Mean	Standard deviation	Minimum	Maximum	N
Group 1	47.1	1.08	45.23	48.78	10
Group 2	52.3	1.43	50.08	54.6	10
Group 3	65.6	1.49	63.23	67.72	10
Group 4	56.5	0.71	55.3	57.6	10
f value	405.906				Total = 40
value	0.001

, significant; , highly significant; , very highly significant; , not significant.