Vertical Marginal Discrepancy of a Monolithic Zirconia Crown with Different Cement Spaces

Table 1

Mean and standard deviation of the three different groups.

	Statistic	Standard error
Group 30
Mean	27.45	3.14
95% confidence interval (CI) for the mean
Lower bound	21.11
Upper bound	33.8
Significance	0.214 > 0.05
Standard deviation (SD)	19.84
Minimum	8.81
Maximum	94.35
Group 50
Mean	23.22	2.72
95% confidence interval (CI) for mean
Lower bound	17.73
Upper bound	28.72
Significance
SD	17.19
Minimum	5.22
Maximum	119.73
Group 70
Mean	22.9	2.02
95% confidence interval (CI) for mean
Lower bound	18.79
Upper bound	27.001
Significance	0.331 > 0.05
SD	12.82
Minimum	9.40
Maximum	81.96