Marginal Discrepancy of Cast Copings to Abutments with Three Different Luting Agents

Table 1

Comparison of the statistical significance of the marginal discrepancy from the four groups.

Group	Mean	SD	Min	Max	Shapiro–Wilk	Kruskal–Wallis
Coping	19.75	3.33	15.70	26.90	0.053	0.001
EfZO	42.75	7.83	29.20	55.22	0.648	0.001
GI	41.72	9.10	25.22	57.60	0.281	0.001
ZP	53.59	14.21	38.82	85.66	0.032	0.001

Values in mean are presented in μ. Coping, control group without any cement; EfZO, eugenol‐free zinc oxide; GI, glass ionomer; ZP, zinc phosphate. Statistically significant.