Table 3.
Comparison of microleakage seen in CAD milled and Copy milled samples when cemented using (a) light cure resin bonding system and (b) self cure resin bonding system
| Light/self | CAD/COPY | N | Mean Rank | Sum of Ranks | Mann–Whitney U | Wilcoxon W | Z | P value | |
|---|---|---|---|---|---|---|---|---|---|
| Light cured | L2/L1 | CAD milled | 8 | 10.94 | 87.5 | 12.5 | 48.5 | −2.189 | 0.038 |
| COPY milled | 8 | 6.06 | 48.5 | ||||||
| Self cured | L2/L1 | CAD milled | 8 | 9.25 | 74 | 26 | 62 | -0.631 | 0.574 |
| COPY milled | 8 | 7.75 | 62 |
| N | Minimum | Maximum | 25th Percentile | MEDIAN | 75th | IQR | |||
|---|---|---|---|---|---|---|---|---|---|
| Light cure | L2/L1 | CAD milled | 8 | 0 | 0.11 | 0.0075 | 0.06 | 0.09625 | 0.08875 |
| COPY milled | 8 | 0 | 0.06 | 0 | 0 | 0.0225 | 0.0225 | ||
| Self cure | L2/L1 | CAD milled | 8 | 0.02 | 0.6 | 0.049 | 0.135 | 0.2475 | 0.1985 |
| COPY milled | 8 | 0.02 | 0.31 | 0.03125 | 0.105 | 0.1775 | 0.14625 |