Effect of Marginal Designs on Fracture Strength of High Translucency Monolithic Zirconia Crowns
Table 2
Two-way analysis of variance (ANOVA) of fracture load and for duration of fracture for high translucency monolithic zirconia crowns upon different margin designs, including margin thickness and collar height.
Source
SS
df
MS
F test
value
ANOVA of fracture load
Corrected model
39635561.786a
5
7927112.357
8.303
0.001
Intercept
1237851270.774
1
1237851270.774
1296.593
0.001
Margin thickness
38456289.734
1
38456289.734
40.281
0.001
Collar height
217577.100
2
108788.550
0.114
0.892
961694.952
2
480847.476
0.504
0.606
Error
80194384.220
84
954695.050
Total
1357681216.780
90
ANOVA for duration of fracture
Corrected model
36594.033a
5
7318.807
4.767
0.001
Intercept
4174420.226
1
4174420.226
2718.983
0.001
Margin thickness
28768.491
1
28768.491
18.738
0.001
Collar height
7656.821
2
3828.410
2.494
0.089
168.721
2
84.361
0.055
0.947
Error
128964.127
84
1535.287
Total
4339978.386
90
SS = sum of squares; df = degree of freedom; MS = mean square; F = F-ratio; = value.
