Table 2.
Comparison of microleakage between (a) CAD milled copings cemented with light cure and self cure resin bonding systems and (b) copy milled copings cemented with light cure and self cure bonding systems
| CAD/COPY | Light/self | N | Mean Rank | Sum of Ranks | Mann–Whitney U | Wilcoxon W | Z | P Value | |
|---|---|---|---|---|---|---|---|---|---|
| CAD milled | L2/L1 | Light cure | 8 | 6.5 | 52 | 16 | 52 | −1.684 | 0.105 |
| Self cure | 8 | 10.5 | 84 | ||||||
| COPY milled | L2/L1 | Light cure | 8 | 5.19 | 41.5 | 5.5 | 41.5 | −2.86 | 0.003 |
| Self cure | 8 | 11.81 | 94.5 |
| Light/self | N | Minimum | Maximum | 25th Percentile | MEDIAN | 75th | IQR | ||
|---|---|---|---|---|---|---|---|---|---|
| CAD milled | L2/L1 | Light cured | 8 | 0 | 0.11 | 0.0075 | 0.06 | 0.09625 | 0.08875 |
| Self cured | 8 | 0.02 | 0.6 | 0.049 | 0.135 | 0.2475 | 0.1985 | ||
| COPY milled | L2/L1 | Light cured | 8 | 0 | 0.06 | 0 | 0 | 0.0225 | 0.0225 |
| Self cured | 8 | 0.02 | 0.31 | 0.03125 | 0.105 | 0.1775 | 0.14625 |