Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Mann-Whitney U test results of the liner materials.
| Immersion in DW | Aging | |||||
|---|---|---|---|---|---|---|
| Material | Mean ΔE* | Mean rank | Mean ΔE* | Mean rank | Mann-Whitney U | Significance |
| DL | 0.50 | 3.50 | 16.30 | 9.50 | 0.000 | P=.004 |
| TR | 1.19 | 3.50 | 13.01 | 9.50 | 0.000 | P=.004 |
| UH | 7.13 | 4.50 | 8.68 | 8.50 | 6.000 | P=.055 |
| MP | 1.75 | 3.67 | 4.78 | 9.33 | 1.000 | P=.006 |
| UP | 0.41 | 3.50 | 3.46 | 9.50 | 0.000 | P=.004 |
n=6, P< .01
