## 3 Results  
Nine patients with 14 isolated (42.9%) and multiple (57.1%) recessions in mandibular incisors were treated, of whom three (21.4%) were classified as Miller class II and 11 (78.6%) as Miller class III defects. Healing was uneventful in most patients. Only one patient experienced partial detachment of the connective tissue graft at 10 days. After 4 weeks, all grafts were fully integrated and completely re-epithelialized. All clinical parameters had changed significantly between the baseline and the final examination at 36 months, as shown in Tables 1 and 2. \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c c} \hline \hline  & \multicolumn{10}{c}{Baseline and 36-Month Follow-Up} \\ \hline
**Parameters** & **N** & **Mean \(\pm\) SD** & **Range** & **\(p\)** \\ \hline GRD (mm) & 14 & & & & & & & & \\ \hline Baseline & 14 & \(3.2\pm 1.5\) & 1–6 & & & & & & \\ \hline
36 months & 14 & \(0.7\pm 0.8\) & 0–2.5 & & & & & & \\ \hline Difference & 14 & \(2.5\pm 1.5\) & 1–6 & & & & & & \\ \hline PD (mm) & 14 & & & & & & & & \\ \hline Baseline & 14 & \(1.7\pm 0.5\) & 1–2 & & & & & & \\ \hline
36 months & 14 & \(2.7\pm 1\) & 1.5–5 & & & & & & \\ \hline Difference & 14 & \(1.1\pm 1.0\) & 0–6 & & & & & & \\ \hline CAL (mm) & 14 & & & & & & & & & \\ \hline Baseline & 14 & \(4.9\pm 1.5\) & 3–8 & & & & & & \\ \hline
36 months & 14 & \(3.4\pm 1.3\) & 2.0–6.5 & & & & & & \\ \hline Difference & 14 & \(1.5\pm 1.4\) & (–1)–4 & & & & & & \\ \hline KTW (mm) & 14 & & & & & & & & & \\ \hline Baseline & 14 & \(0.7\pm 1\) & 0–4 & & & & & & & \\ \hline
36 months & 14 & \(2.6\pm 1.6\) & 1–5 & & & & & & & \\ \hline Difference & 14 & \(1.9\pm 1.7\) & 0–5 & & & & & & & \\ \hline GT (mm) & 14 & & & & & & & & & \\ \hline Baseline & 14 & \(0.0\pm 0.0\) & 0–0 & & & & & & & \\ \hline
36 months & 14 & \(1.3\pm 0.3\) & 1–2 & & & & & & & \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Clinical parameters at baseline and 36-month follow-up. \begin{table}
\begin{tabular}{c c c c c c c c c c c c c c} \hline \hline \multicolumn{10}{c}{Baseline} & \multicolumn{10}{c}{3 Years} \\ \hline
**Patient** & **Age** & **Tooth** & **RT** & **PD** & **GRD** & **CAL** & **KTW** & **CEJ** & **Step** & **PD** & **GRD** & **CAL** & **KTW** & **GT** \\ **(n)** & **Age** & **(FDI)** & **(mm)** & **(mm)** & **(mm)** & **(mm)** & **(A/B)** & **(+/–)** & **(mm)** & **(mm)** & **(mm)** & **(mm)** & **(mm)** \\ \hline
1 & 29 & 31 & II & 2 & 3 & 5 & 0 & A & - & 4 & 0 & 4 & 3 & 1.1 \\ \hline
2 & 27 & 41 & II & 1.5 & 2.5 & 4 & 0.5 & A & - & 2 &On average, the GRD was 3.2 \(\pm\) 1.5 mm (ranging from 1 to 6 mm) at baseline, with a CAL of 4.9 \(\pm\) 1.5 mm (bounded in a range of 3 to 8 mm). The KTW was 0.7 \(\pm\) 1 mm (ranging from 0 to 4 mm). After surgical treatment and a 36-month follow-up, the GRD was, on average, 0.7 \(\pm\) 0.8 mm (range 0 to 2.5 mm), representing 80.5% \(\pm\) 23% RC. Similarly, the CAL at the end of the evaluation period averaged 3.4 \(\pm\) 1.3 mm (range 2.0 to 6.5 mm). The final mean KTW was 2.6 \(\pm\) 1.6 (range 1 to 5 mm), and the mean GT gain was 1.3 \(\pm\) 0.3 (range 1 to 2 mm). All of these changes were found to be statistically significant (_p_ < 0.05) after a comparison with the Wilcoxon signed-rank test (non-parametric test for paired data). The non-parametric comparison of the degree of root coverage (RC) and GT gain, according to the [PERSON] class (II and III), showed statistically significant differences (_p_ < 0.05). Specifically, RC gain was significantly higher in [PERSON] class II (95.8 \(\pm\) 7.2%) vs. [PERSON] class III (76.4 \(\pm\) 24.2%). However, GT gain was significantly (_p_ < 0.01) higher in [PERSON] class III (1.4 \(\pm\) 0.3 mm) compared to [PERSON] class II (1.1 \(\pm\) 0.1 mm). Finally, as shown in Table 3, the change in the final esthetic outcome score averaged 7.4 \(\pm\) 2.7 points out of 10, with a median of 8.5 and an interquartile range of 4. Given that all patients had scores of zero on the RES scale at the beginning of the study, these results imply that there was a 74% improvement in esthetic terms.