Table 2.
Intergroup comparisons and descriptive statistics for the fracture resistance (N)
| Group | Mean | 95% Confidence interval | SD | Min | Max | |
|---|---|---|---|---|---|---|
| Lower | Upper | |||||
| Lithium disilicate inlay | 873.69BC | 800.51 | 946.86 | 105.60 | 738.43 | 1018.47 |
| Composite inlay | 771.38C | 713.37 | 829.39 | 83.71 | 643.88 | 839.08 |
| Lithium disilicate overlay | 1101.83A | 1047.35 | 1156.32 | 78.63 | 991.41 | 1194.52 |
| Composite overlay | 973.53B | 898.62 | 1048.44 | 108.10 | 801.98 | 1068.55 |
| Negative control | 391.70D | 362.02 | 421.37 | 42.82 | 329.84 | 448.55 |
| Positive control | 1126.89A | 1080.61 | 1173.18 | 66.79 | 1064.66 | 1211.66 |
Different superscript letters indicate a statistically significant difference within the same vertical column and horizontal row