## 3 Results
### Evaluation of Results
#### 3.3.2. Zirconium Oxide Materials  
As can be seen in Table 7, the results of three studies were analyzed, revealing that Dentsply Sirona's InCoris TZI exhibited remarkably high FS values, reaching 1.183 \(\pm\) 204 MPa, when adhering to the manufacturer's recommended treatment [37]. In Table 8, a comparative analysis reveals that the Katana STML block (Kuraray, Noritake, Japan) achieved significantly higher ranges in FS when using the SpeedFire oven (Dentsply Sirona) at a temperature of 1600 \({}^{\circ}\)C for 30 min [34]. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{4}{c}{**FT (MPa) 8–10 min**} \\ \hline
**Authors** & **Ceramics/Manufacturer** & \begin{tabular}{c} **Heat** \\ **Teatment/Furnace** \\ **Manufacturer** \\ \end{tabular} & **Time** & \begin{tabular}{c} **FT** \\ **K\({}_{\text{IC}}\)** \\ \end{tabular} & \begin{tabular}{c} **FT** \\ **K\({}_{\text{IC}}\)** \\ \end{tabular} \\ \hline [PERSON] et al. 2019 [40] & \begin{tabular}{c} Vita Suprinity \\ VITA Zahnfabrik \\ \end{tabular} & 840 \({}^{\circ}\)C Kota Evo & 8 min & 1.15 & 0.13 \\ \hline [PERSON] et al. 2019 [40] & \begin{tabular}{c} IPS e.max CAD \\ Ivocalr Vivadent \\ \end{tabular} & \begin{tabular}{c} 850 \({}^{\circ}\)C Kota Evo \\ Dorjen Company \\ \end{tabular} & 10 min & 1.30 & 0.16 \\ \hline [PERSON], [PERSON] et al. & \begin{tabular}{c} Vita Suprinity \\ VITA Zahnfabrik \\ \end{tabular} & \begin{tabular}{c} 840 \({}^{\circ}\)C Programat \\ EP 510 \\ Ivocalr Vivadent \\ \end{tabular} & 8 min & 2.8 & 0.9 \\ \hline [PERSON], [PERSON] & \begin{tabular}{c} Vita Suprinity \\ VITA Zahnfabrik \\ \end{tabular} & \begin{tabular}{c} 840 \({}^{\circ}\)C Vita \\ Vicumat 6000 MP \\ Vita Zahnfabrik \\ \end{tabular} & 8 min & 2.63 & 0.14 \\ \hline [PERSON], [PERSON] & \
\begin{tabular}{c} Celtra Duo \\ Dentsply Sirona \\ \end{tabular} &
\begin{tabular}{c} 830 \({}^{\circ}\)C Multimat \\ Dentsply Sirona \\ \end{tabular} & 10 min & 2.51 & 0.59 \\ \hline \hline \end{tabular}  
* SD: Standard deviation; FT: Fracture toughness.  
\end{table} 
Table 6: FT results in the silicate ceramics group in a time range of 8–10 min. \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & \multicolumn{4}{c}{**FS (MPa) 15–18 min**} \\ \hline
**Authors** & **Ceramics/Manufacturer** & \begin{tabular}{c} **Heat Teatment/Furnace** \\ **Manufacturer** \\ \end{tabular} & **Time** & \begin{tabular}{c} **FS** \\ **(MPa)** \\ \end{tabular} & **(MPa)** & **SD** \\ \hline [PERSON] et al. 2020 & \begin{tabular}{c} Katana STML Block \\ [34] \\ \end{tabular} & \begin{tabular}{c} 1600 \({}^{\circ}\)C SpeedFire \\ Kuraray Noritake \\ \end{tabular} & 18 min & 859 & 110 \\ \hline [PERSON] et al. & \begin{tabular}{c} Katana STML Block \\ 2022 [31] \\ \end{tabular} & \begin{tabular}{c} 1560 \({}^{\circ}\)C SpeedFire \\ Kuraray Noritake \\ \end{tabular} & 15 min & 500 & 234 \\ \hline [PERSON], Uasuwan & \
\begin{tabular}{c} InCoris TZI \\ Dentsply Sirona \\ \end{tabular} &
\begin{tabular}{c} 1510 \({}^{\circ}\)C Infire Dentsply \\ Sirona \\ \end{tabular} & 15 min & 1183 & 204 \\ \hline \hline \end{tabular}  
* SD: Standard deviation; MPa: Megapascals; PS: Flexural strength.  
\end{table} 
Table 7: FS results of the zirconium oxide ceramics group in a time range of 15–18 min. When examining the results detailed in Table 9, it is highlighted that Razor Zirconia from the commercial company U&C International exhibited superior values in FS, reaching 659 \(\pm\) 39 MPa, compared to IPS e.max ZirCAD from Ivoclar Vivadent [41; 42]. Three studies [31; 34; 43] analyzed the thermal influence on FS over a range of 7 to 8 h, at 1550 \({}^{\circ}\)C. The results indicate that Zpex Smile from TOSOH outperformed Katana STML Block/Kuraray Noritake and Prettau Anterior/Zirconzahn, as presented in Table 10.