Oral Biology Research

Table. 3.

Regression analysis of degree of conversion and discoloration (∆E00) after 4 weeks

Product Solution B SE β t p-value R R2 Adjusted R2
Filtek Water –2.347 2.238 –0.240 –1.049 0.308 0.240 0.058 0.005
Red wine –50.387 13.960 –0.648 –3.610 0.002 0.648 0.420 0.388
Coffee –24.626 8.933 –0.560 –2.869 0.010* 0.560 0.314 0.276
Tetric Water 3.283 2.727 0.273 1.204 0.244 0.273 0.075 0.023
Red wine –51.424 5.994 –0.896 –8.580 <0.001 0.896 0.804 0.793
Coffee –83.582 11.726 –0.859 –7.128 <0.001 0.859 0.738 0.724

SE, standard error.

*p<0.05, p<0.01, p<0.001 by regression analysis.

Oral Biol Res 2023;47:123~131 https://doi.org/10.21851/obr.47.04.202312.123
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