## 3 Results
### Width vs. Inclination of the Upper Central Incisors (Convergent/Divergent)
#### 3.2.3 L3 Level  
No correlations were found at the L3 level.  
Inclination of the Incisors (Angle Formed by the Long Axis and the Palatal Plane) vs. Inclination of the Incisal Canal  
A positive and very strong correlation was found between the inclination of the incisors and the inclination of the canal in the group of women aged 13 to 20 (r = 0.828, \(p\)\(<\) 0.05) and 40 to 49 years (r = 0.603). In the case of men, a moderate and negative correlation was observed between 13 and 20, and 30 and 39 years of age (r= \(-\)0.429; r= \(-\)0.495; \(p\)\(>\) 0.05), respectively. A strong, positive, and statistically significant correlation was found for those aged 20 to 29 years (r = 0.868, \(p\)\(<\) 0.05). In the general breakdown by sex, only women showed a statistically significant, yet moderate, correlation between these parameters. Graphs presenting statistical values for incisor and canal inclination in women and men confirm the above relationships (Table 5).  
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Gender/Age**} & \multirow{2}{*}{**Mean Width (SD)**} & \multicolumn{2}{c}{**Mean Inclination of the Central Incisors (SD)**} & \multirow{2}{*}{**r(X,Y)**} & \multirow{2}{*}{**r2**} & \multirow{2}{*}{**t**} & \multirow{2}{*}{_p_} \\ \cline{1-1} \cline{6-6}  & & & & & & \\ \hline F 13–20 & 4 (\(\pm\)0.81) & 0.11 (\(\pm\)6.13) & \(-\)0.617 & 0.38 & \(-\)2.08 & 0.08 \\ \hline M13–20 & 4.03 (\(\pm\)0.82) & \(-\)1.29 (\(\pm\)7.95) & 0.64 & 0.41 & 1.86 & 0.12 \\ \hline F 21–29 & 4.61 (\(\pm\)0.89) & \(-\)1.72 (\(\pm\)4.8) & \(-\)0.492 & 0.24 & \(-\)1.49 & 0.18 \\ \hline M 21–29 & 4.5 (\(\pm\)1.33) & \(-\)2.13 (\(\pm\)5.79) & 0.623 & 0.39 & 1.95 & 0.1 \\ \hline F 30–39 & 4.68 (\(\pm\)1.36) & \(-\)4.13 (\(\pm\)6.03) & \(-\)0.225 & 0.05 & \(-\)0.57 & 0.59 \\ \hline M 30–39 & 4.4 (\(\pm\)1.06) & 0.63 (\(\pm\)2.77) & \(-\)0.536 & 0.29 & \(-\)1.55 & 0.17 \\ \hline F 40–49 & 4.78 (\(\pm\)0.52) & \(-\)1.11 (\(\pm\)8.51) & \(-\)0.53 & 0.28 & \(-\)1.65 & 0.14 \\ \hline M 40–49 & 5.04 (\(\pm\)0.96) & \(-\)1.61 (\(\pm\)4.41) & 0.262 & 0.07 & 0.72 & 0.5 \\ \hline \hline \end{tabular}
\end{table}
Table 4: Width (Cl-Cl) vs. inclination of upper central incisors (convergent/divergent)—L1.  
\begin{table}
\begin{tabular}{c c c c c c c} \hline \hline \multirow{2}{*}{**Gender/Age**} & \multirow{2}{*}{
\begin{tabular}{c} **Mean Angle Formed by the** \\ **Long Axis of the Incisor** \\ **and the Palatal Plane (SD)** \\ \end{tabular} } & \multicolumn{2}{c}{**Mean Angle Formed by the**} & \multirow{2}{*}{**r(X,Y)**} & \multirow{2}{*}{**r2**} & \multirow{2}{*}{**t**} & \multirow{2}{*}{_p_} \\ \cline{4-4} \cline{6-7}  & & & & & \\ \hline F 13–20 & 113.33 (\(\pm\)7.25) & 107.44 (\(\pm\)10.91) & 0.828 & 0.69 & 3.91 & 0.01 \\ \hline M13–20 & 115.71 (\(\pm\)11.86) & 103.14 (\(\pm\)7.29) & \(-\)0.429 & 0.18 & \(-\)1.06 & 0.33 \\ \hline F 21–29 & 109.11 (\(\pm\)11.03) & 105.22 (\(\pm\)9.34) & 0.238 & 0.06 & 0.65 & 0.54 \\ \hline M 21–29 & 113.38 (\(\pm\)6.23) & 109.13 (\(\pm\)8.2) & 0.868 & 0.75 & 4.28 & 0.01 \\ \hline \hline \end{tabular}
\end{table}
Table 5: Inclination of the incisors (angle formed by the long axis and the palatal plane) vs. inclination of the incisive canal.