## 3 Results  
All selected patients and treated teeth could be evaluated. The score percentages for each group in each criterion are shown after 30 days in Table 5, and after 60 days in Table 6. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Score** & **Giant Cells** & **Particles of Capping Materials** \\ \hline
1 & Absent & Absent \\
2 & Mild & Mild \\
3 & Moderate & Moderate \\
4 & Pulp necrosis & Large number \\ \hline \hline \end{tabular}
\end{table} 
Table 4: Scores used for other pulpal findings. \begin{table}
\begin{tabular}{c c c c c} \hline \hline
**Score** & **Continuity** & **Morphology** & **Thickness of Dental** & **Localization** \\ \hline
1 & Complete & \
\begin{tabular}{c} Dentin or dentin \\ associated with an \\ irregular hard tissue \\ \end{tabular} & Up to 250 \(\mu\)m &
\begin{tabular}{c} Closure to the exposition \\ area without invading the \\ pulp space \\ \end{tabular} \\ \hline
2 & \begin{tabular}{c} Little communication of the \\ capping material with the \\ dental pulp \\ \end{tabular} & \
\begin{tabular}{c} Only irregular hard \\ tissue deposition \\ \end{tabular} & 150-249 \(\mu\)m &
\begin{tabular}{c} Bridge invading pulp space \\ next to the opposite dentin \\ wall \\ \end{tabular} \\ \hline
3 & \begin{tabular}{c} Only lateral deposition of \\ hard tissue on the walls of \\ the cavity of pulp exposure \\ \end{tabular} & \
\begin{tabular}{c} Only a slight layer of \\ hard tissue deposition \\ \end{tabular} & 1–149 \(\mu\)m &
\begin{tabular}{c} Bridge reached the opposite \\ dentin wall \\ \end{tabular} \\ \hline
4 & \
\begin{tabular}{c} Absence of hard tissue \\ bridge and absence of lateral \\ deposition of hard tissue \\ \end{tabular} & No hard tissue &
\begin{tabular}{c} No bridge or only hard tissue \\ deposition on the walls of \\ \end{tabular} \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Evaluation parameters and scores used for hard tissue bridge formation (continuity, morphology, thickness of dental bridge, and localization). \begin{table}
\begin{tabular}{c c} \hline \hline
**Score** & **Intensity of Inflammatory Reaction (Acute and Chronic)** \\ \hline
1 & Absent or very few inflammatory cells \\
2 & Mild: average number less than 10 inflammatory cells \\
3 & Moderate: average number 10–25 inflammatory cells \\
4 & Severe: average number greater than 25 inflammatory cells \\ \hline
**Score** & **Extension of The Inflammatory Reaction (Acute and Chronic)** \\
1 & Absent \\
2 & Mild: inflammatory cells only next to dentin bridge or area of pulp exposition \\
3 & Moderate: inflammatory cells are observed in part of coronal pulp \\
4 & Severe: all coronal pulp is infiltrated or necrotic \\ \hline
**Score** & **General State of The Pulp** \\
1 & No inflammatory reaction \\
2 & With inflammatory reaction \\
3 & Abscens \\
4 & Necrosis \\ \hline \hline \end{tabular}
\end{table} 
Table 3: Scores used for the evaluation of the inflammatory response of pulp. Considering hard tissue bridge formation after 30 days, significant differences could be found when ProRoot and RetroMTA were compared. As for the parameters--continuity (\(p\) = 0.029), morphology (\(p\) = 0.023), and localisation (\(p\) < 0.001)--the RetroMTA performed significantly better compared with ProRoot MTA. After 60 days, only continuity, the hard tissue bridge formation parameter, showed significant difference, in favour of the direct capping material ProRoot MTA (\(p\) = 0.010) (Figure 1).