Table 4. Correlation matrix of mean flexural modulus results (Pearson’s).
| Beautifil II | Esthet X | Filtek Supreme Ultra | TPH3 | Z250 | |
|---|---|---|---|---|---|
|
n
= 20; r = Pearson’s correlation coefficient; r
2
= determination coefficient
Correlation matrix represents comparison of all materials’ results with each other using all data points (baseline through 30 months). | |||||
| Beautifil II | 1.0 | r = 0.65 p = 0.057 r 2 = 0.42 |
r = 0.62 p = 0.073 r 2 = 0.38 |
r = 0.71 p = 0.030 r 2 = 0.50 |
r = 0.61 p = 0.078 r 2 = 0.37 |
| Esthet X | r = 0.65 p = 0.057 r 2 = 0.42 |
1.0 | r = 0.71 p = 0.031 r 2 = 0.50 |
r = 0.72 p = 0.028 r 2 = 0.65 |
r = 0.34 p = 0.36 r 2 = 0.11 |
| Filtek Supreme Ultra | r = 0.62 p = 0.073 r 2 = 0.38 |
r = 0.71 p = 0.031 r 2 = 0.50 |
1.0 | r = 0.65 p = 0.045 r 2 = 0.42 |
r = 0.52 p = 0.006 r 2 = 0.67 |
| TPH3 | r = 0.71 p = 0.030 r 2 = 0.50 |
r = 0.72 p = 0.028 r 2 = 0.65 |
r = 0.67 p = 0.045 r 2 = 0.45 |
1.0 | r = 0.52 p = 0.15 r 2 = 0.27 |
| Z250 | r = 0.61 p = 0.078 r 2 = 0.33 |
r = 0.34 p = 0.36 r 2 = 0.22 |
r = 0.82 p = 0.006 r 2 = 0.67 |
r = 0.52 p = 0.15 r 2 = 0.27 |
1.0 |