BioMed Research International

Research Article

Influences of Different Air-Inhibition Coatings on Monomer Release, Microhardness, and Color Stability of Two Composite Materials

Table 2

Mean ± standard deviation (SD) of the color change (ΔE) of the materials. Water (dH2O), Red Wine (RW), Coffee (CF). Horizontal, different superscript letters indicate significant difference in ΔE between same storage solutions for the different polymerization conditions. Exceptions to this statement are clearly shown in the table (ns: not significant). Vertical, different capital letters indicate significant difference in ΔE between different materials in same storage conditions.
BBdH2ORWCFdH2ORWCFdH2ORWCFdH2ORWCF
CXGroup AGroup BGroup CGroup D
Mean ± SD2.45±
0.78		19,17±
0.4 
A vs B ns 
E		13,85±
0.8 
E		1,34±
0.54		18.70±
3.0 
E		18.1±
1. 
E		1.56±
0.35		43.93±
4.1 
E		22.01±
1.7 
E		4.07±
1.81		36.99±
1.0 
E		28.25±
0.9 
E
XTEGroup AGroup BGroup CGroup D
Mean ± SD2,20±
1.1		36.64±
2.7 
F		26.67±
2.1 
F		0.93±
0.3		44.35±
6.9 
F		37.2±
4.6 
B vs C ns 
F		1.86±
0.64		50.89±
0.8 
F		37.51±
2.6 
F		6.29±
2.08		65.35
±0.8 
F		54.88±
6. 
F
WBdH2ORWCFdH2ORWCFdH2ORWCFdH2ORWCF
CXGroup AGroup BGroup CGroup D
Mean ± SD2.11±
0.24		20.41±
0.1 
A vs B ns 
G		15.27±
1.3  
A vs B 
ns 
G		0.86±
0.15		18.25±
1.1 
G		16.5±
0.8 
G		1.58±
0.17		36.86±
0.99 
G		23.38±
0.5 
G		4.24±
0.55		38.64±
0.1 
D vs C ns		28.89±
0.3
XTEGroup AGroup BGroup CGroup D
Mean ± SD1.09±
0.17		35.00±
0.9 
H		27.80±
0.6 
H		1.15±
0.06		45.80±
2.33
H		38.5±
2.1 
B vs C ns 
H		1,66±
0.16		52.54±
0.6 
C vs D ns
H		39.02±
1.0 
H		7.94±
0.87		48.86±
5.4		58.07±
2.6