Table 3 Relationship between surveying score and \(\Delta {\text{E}}\) value
From: Perceptual and quantitative analysis of discoloration of orthodontic elastomeric chains by food
Score | \(\Delta {\text{E}}\) value | |
|---|---|---|
Spearman’s rho | ||
Score | 1.000 | |
\(\Delta {\text{E}}\) value | 0.918* | 1.000 |