## 3 Results
\begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{4}{c}{**Median Differences [95\% Confidence Interval] of OHIP-EDENT-J**} \\ \cline{2-6}  & **T1-T0** & **T2-T0** & **T3-T0** & **T4-T0** & **T5-T0** \\ \hline Immediate loading & \(-8\) & \(-2\) & \(-12\) & \(-6\) & \(-16\) \\ Group (IG) & [\(-18\), 1] & [\(-14\), 2] & [\(-19\), \(-4\)] & [\(-21\), \(-1\)] & [\(-21\), \(-4\)] \\ Conventional & \(-5\) & \(-5\) & \(-3\) & \(-7\) & \(-3\) \\ loading Group (CG) & [\(-10\), 0] & [\(-9\), \(-3\)] & [\(-11\), \(-2\)] & [\(-12\), 0] & [\(-11\), 1] \\ \(p\) & 1.000 & 0.696 & 0.613 & 0.945 & 0.639 \\ \hline \hline \end{tabular} Note: Data are presented as median [first quartile, third quartile].  
\end{table} 
Table 3: Median differences in OHIP-EDENT-J between baseline and each yearly evaluation period between groups (immediate loading group (IG); conventional loading group (CG)). \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{4}{c}{**Median Differences [95\% Confidence Interval] of OHIP-EDENT-J**} \\ \cline{2-6}  & **T1-T0** & **T2-T0** & **T3-T0** & **T4-T0** & **T5-T0** \\ \hline Immediate loading & 19 & 15 & 23 & 18 & 23 \\ Group (IG) & [11; 48] & [4; 27] & [14; 39] & [1; 57] & [2; 42] \\ Conventional & 58 & 28 & 13 & 2 & 18 \\ loading Group (CG) & [20; 86] & [3; 48] & [1; 44] & [\(-4\), 42] & [\(-3\), 40] \\ \(p\) & 1.000 & 0.829 & 0.613 & 0.694 & 0.867 \\ \hline \hline \end{tabular} Note: Data are presented as median [first quartile, third quartile].  
\end{table} 
Table 5: Median differences in 6 domains of PDA scores between baseline and each yearly evaluation period between groups (immediate loading group (IG); conventional loading group (CG)). However, within-group analyses yielded significant differences, as outlined in Tables 6-8. Pertaining to OHIP-EDENT-J, significant differences emerged between the baseline and each yearly evaluation period within each group. Specifically, significant differences were noted between T3-T0 for the immediate group and between T1, T2, and T3 when compared with T0 for the conventional group. For patient satisfaction, there were significant differences between T1, T2, and T3 when compared with T0 for the immediate group, as well as between T1-T0 for the conventional group. Interestingly, no significant differences were detected between year 4, year 5, and the baseline in the OHIP-EDENT-J score or patient satisfaction. Regarding median differences in the six domains of PDA scores for the initial three years (T1-T3), significant differences were observed between the baseline and each annual evaluation period in all domains of each of the two groups, with some exceptions. Notably, the Function domain of T2-T0 exhibited no significant difference in the immediate group. In year 4, significant differences were identified in the Function domain in the conventional group, along with the Maximally Denture, Expectation, and Esthetic and Speech domains in the immediate group. In year 5, significant differences were apparent in the Function domain for the conventional group, while the immediate groups displayed significant differences in all six domains. \begin{table}
\begin{tabular}{c c c c c c} \hline \hline  & \multicolumn{4}{c}{_p_**-Value between Each Stage and T0 of PDA in Each Group**} \\ \cline{2-6}  & **T1-T0** & **T2-T0** & **T3-T0** & **T4-T0** & **T5-T0** \\ \hline Immediate loading & 0.590 & 0.241 & 0.012 * & 0.176 & 0.091 \\ Group (IG) & 0.046 * & 0.035 * & 0.017 * & 0.173 & 0.279 \\ \hline \hline \end{tabular}  
*: there is a significant difference in scores between each stage and T0.  
\end{table} 
Table 6: _p_-value of median differences in six OHIP-EDENT-J scores between baseline and each yearly evaluation period within each group (immediate loading group (IG); conventional loading group (CG)).