## 3 Results
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Groups** & **Coordinates** & **T\({}_{\text{0}}\)** & **T\({}_{\text{PO}}\)** & **T\({}_{\text{2H}}\)** & **T\({}_{\text{TD}}\)** & **T\({}_{\text{EM}}\)** & \(p\)** \\ \hline \multirow{4}{*}{**Control/Blood**} & L* & 58.4 \(\pm\) 9.2 & 58.0 \(\pm\) 8.9 & 53.5 \(\pm\) 12.0 & 53.6 \(\pm\) 10.3 & 51.3 \(\pm\) 7.9 & \textless{}0.053 \\  & a* & 1.0 \(\pm\) 3.2 & 49.4 \(\pm\) 3.7 & 3.9 \(\pm\) 4.0 & 3.4 \(\pm\) 3.6 & 3.3 \(\pm\) 2.8 & \textless{}0.034 \\  & b* & 12.5 \(\pm\) 5.9 & 10.6 \(\pm\) 5.3 & 7.5 \(\pm\) 4.8 & 8.7 \(\pm\) 4.9 & 10.8 \(\pm\) 5.1 & \textless{}0.022 \({}^{\dagger}\) \\  & \(\Delta\)E & & 4.4 \(\pm\) 1.4 & 7.7 \(\pm\) 4 & 6.7 \(\pm\) 2.8 & 8.0 \(\pm\) 1.7 & \textless{}0.122 \\ \hline \multirow{4}{*}{**MTA/Blood**} & L* & 58.4 \(\pm\) 5.1 & 58.6 \(\pm\) 4.3 & 54.5 \(\pm\) 4.1 & 51.3 \(\pm\) 4.0 & 52.1 \(\pm\) 5.1 & \textless{}0.001 \({}^{\dagger}\) \\  & a* & 1.0 \(\pm\) 2.0 & 1.5 \(\pm\) 1.6 & 0.0 \(\pm\) 2.0 & -0.4 \(\pm\) 2.0 & 0.6 \(\pm\) 1.9 & \textless{}0.001 \({}^{\dagger}\) \\  & b* & 16.0 \(\pm\) 3.2 & 13.5 \(\pm\) 4.3 & 11.2 \(\pm\) 4.9 & 7.8 \(\pm\) 3.8 & 12.2 \(\pm\) 3.1 & \textless{}0.001 \({}^{\dagger}\) \\  & \(\Delta\)E & & 3.4 \(\pm\) 2.7 & 6.4 \(\pm\) 3.1 & 9.8 \(\pm\) 2.6 & 7.6 \(\pm\) 2.4 & \textless{}0.004 \({}^{\dagger}\) \\ \hline \multirow{4}{*}{**Biodentine/Blood**} & L* & 60.6 \(\pm\) 4.2 & 60.6 \(\pm\) 4.0 & 60.9 \(\pm\) 4.1 & 57.3 \(\pm\) 3.9 & 61.0 \(\pm\) 4.2 & \textless{}0.013 \({}^{\dagger}\) \\  & a* & 0.8 \(\pm\) 2.4 & 0.9 \(\pm\) 2.2 & 1.4 \(\pm\) 2.5 & 1.0 \(\pm\) 1.9 & 1.9 \(\pm\) 2.3 & \textless{}0.010 \({}^{\dagger}\) \\  & b* & 12.8 \(\pm\) 5.5 & 12.2 \(\pm\) 4.8 & 14.0 \(\pm\) 4.5 & 12.4 \(\pm\) 3.8 & 16.7 \(\pm\) 4.4 & \textless{}0.004 \({}^{\dagger}\) \\  & \(\Delta\)E & & 1.6 \(\pm\) 1.4 & 2.1 \(\pm\) 1.0 & 3.8 \(\pm\) 1.2 & 4.6 \(\pm\) 1.6 & \textless{}0.009 \({}^{\dagger}\) \\ \hline \multirow{4}{*}{**TotalFill/Blood**} & L* & 59.1 \(\pm\) 7.8 & 59.4 \(\pm\) 7.0 & 57.5 \(\pm\) 57.1 & 54.6 \(\pm\) 6.5 & 56.7 \(\pm\) 6.7 & \textless{}0.001 \({}^{\dagger}\) \\  & a* & 0.5 \(\pm\) 2.5 & 2.7 \(\pm\) 3.2 & 1.7 \(\pm\) 3.0 & 1.5 \(\pm\) 2.9 & 1.8 \(\pm\) 2.9 & \textless{}0.015 \({}^{\dagger}\) \\  & b* & 11.0 \(\pm\) 4.3 & 10.3 \(\pm\) 4.5 & 11.4 \(\pm\) 3.5 & 10.2 \(\pm\) 3.3 & 15.5 \(\pm\) 3.0 & \textless{}0.006 \({}^{\dagger}\) \\  & \(\Delta\)E & & 3.1 \(\pm\) 2.1 & 2.5 \(\pm\) 0.9 & 5.1 \(\pm\) 1.3 & 5.5 \(\pm\) 2.3 & \textless{}0.086 \({}^{\dagger}\) \\ \hline \multirow{4}{*}{**PCM/Blood**} & L* & 58.6 \(\pm\) 6.9 & 58.6 \(\pm\) 4.8 & 55.0 \(\pm\) 5.9 & 51.0 \(\pm\) 5.6 & 55.9 \(\pm\) 5.6 & \textless{}0.001 \({}^{\ddagger}\) \\  & a* & 2.0 \(\pm\) 2.2 & 3.9 \(\pm\) 2.0 & 4.8 \(\pm\) 3.7 & 4.0 \(\pm\) 3.4 & 3.2 \(\pm\) 2.6 & \textless{}0.004 \({}^{\dagger}\) \\  & b* & 15.9 \(\pm\) 6.8 & 14.3 \(\pm\) 7.1 & 15.8 \(\pm\) 4.9 & 14.5 \(\pm\) 4.6 & 18.6 \(\pm\) 5.6 & \textless{}0.003 \({}^{\dagger}\) \\  & \(\Delta\)E & & 3.3 \(\pm\) 1.2 & 5.5 \(\pm\) 2.9 & 8.4 \(\pm\) 3.0 & 4.5 \(\pm\) 2.5 & \textless{}0.006 \({}^{\dagger}\) \\ \hline \hline \end{tabular} T\({}_{0}\): baseline (after cavity preparation, before biomaterial placement); T\({}_{\text{PO}}\): immediately after biomaterial placement and provisional restoration; T\({}_{\text{2H}}\): after 72 h of storage; T\({}_{\text{TD}}\): after 7 days of storage; and T\({}_{\text{GM}}\): after six months of storage. Mean \(\pm\) standard deviation. \({}^{\dagger}\) Statistically significant difference (\(p<0.05\)).  
\end{table} 
Table 2: _Cont._If solely the material is considered regardless the timing of evaluation, statistically significant differences are found (F(4, 44) = 13.05; \(p<\)0.001), which also applies to treatment (F(1, 44) = 23.11; \(p<\) 0.001). MTA is the material showing lowest color stability, with statistically significant differences (\(p<\) 0.001) being detected in regard to all other tested CSCs (Biodentine, TotalFill, and PCM). Furthermore, no statistically significant differences are found between Biodentine, TotalFill, and PCM.