## 3 Results  
The features of the sample are described in Tables 1 and 2. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Variables** & **n** & **\%** \\ \hline Sex & & \\ Male & 24 & 41.3 \\ Female & 34 & 58.6 \\ Diabetes & & \\ No & 48 & 82.8 \\ Yes & 8 & 13.8 \\ Uninformed & 2 & 3.4 \\ Hypertension & & \\ No & 41 & 70.7 \\ Yes & 15 & 25.9 \\ Uninformed & 2 & 3.4 \\ Antihypertensive use & & \\ No & 47 & 81.0 \\ Yes & 11 & 18.9 \\ \hline \hline \end{tabular}
\end{table} 
Table 1: Distribution of individuals according to the individual level variables (n = 58). \begin{table}
\begin{tabular}{c c c} \hline \hline
**Variables** & **n** & **\%** \\ \hline Region & & \\ Ant. Maxilla & 17 & 15.0 \\ Ant. Mandible & 14 & 12.3 \\ Post. Maxilla & 29 & 25.6 \\ Post. Mandible & 53 & 46.9 \\ Arch & & \\ Maxilla & 48 & 42.4 \\ Mandible & 65 & 57.5 \\ Brand & & \\ Neodent & 87 & 76.9 \\ Conexão & 26 & 23.0 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: Distribution of individuals according to the implant level variables (n = 113). Of the 226 sites analyzed, 77 (34.07%) showed MBL lower than 0.2 mm and 149 (65.93%) showed MBL higher than 0.2 mm at a mean follow-up of 6 months. The mean MBL for all the sites evaluated was 0.45 \(\pm\) 0.48 mm. The mean MBL in the mesial sites was 0.44 \(\pm\) 0.46 mm, and in the distal sites it was 0.46 \(\pm\) 0.50 mm, with no significant difference between them. The mean MBL measured at the implant sites with low torque was 0.42 \(\pm\) 0.28 mm, with regular torque it was 0.32 \(\pm\) 0.39 mm, and with high torque it was 0.55 \(\pm\) 0.57 mm. Considering the average difference in MBL between regular and high torque and the study sample size, the analysis showed a power of 89.8%. Table 3 shows a multilevel linear regression model for the statistical association between MBL (continuous variable in mm) and the variables of interest. The final multivariate model shows that torque, time between surgery and reopening, diabetes and age had an effect on the outcome. Implants installed with torque below 20 N and above 40 N showed greater MBL compared with the regular torque group. Low torque increased MBL by 0.94 mm [log\(\beta\) 0.94 (95% CI 0.44-1.44); \(p<\) 0.001] compared with regular torque. High torque increased MBL by 0.93 mm [log\(\beta\) 0.93 (95% CI 0.52-1.33); \(p<\) 0.001], compared with regular torque. Implants that were reopened up to six months after the installation showed lower MBL [log\(\beta\) 0.46 (95% CI 0.10-0.81); \(p=\) 0.012], and younger individuals showed greater MBL compared with older individuals [log\(\beta\) \(-\)0.18 (95% CI \(-\)0.03-0.00); \(p=\) 0.047]. Diabetic patients showed a higher MBL than non-diabetic patients, with an increase in the mean value of MBL of 0.55 mm [log\(\beta\) 0.55 (95% CI 0.08-1.02); \(p=\) 0.020]. \begin{table}
\begin{tabular}{c c c} \hline \hline
**Variables** & **n** & **\%** \\ \hline Protection & & \\ Cover screw & 87 & 77 \\ Healing abutment & 22 & 19.5 \\ Provisional & 4 & 3.5 \\ Torque (N) & & \\
0–20 & 22 & 19.4 \\
21–40 & 38 & 33.6 \\ Above 40 & 53 & 46.9 \\ Time to reopen (months) & & \\
3 & 12 & 10.6 \\
4 & 14 & 12.3 \\
5 & 30 & 26.5 \\
6 & 32 & 28.3 \\
7 & 7 & 6.2 \\
8 & 3 & 2.7 \\
9 & 15 & 13.2 \\ \hline \hline \end{tabular}
\end{table} 
Table 2: _Cont._ \begin{table}
\begin{tabular}{c c c c c} \hline \hline  & \multicolumn{2}{c}{**Crude**} & \multicolumn{2}{c}{**Adjusted**} \\ \cline{2-5}
**Variable** & **log Beta (CI 95\%)** & \(p\)**-Value** & **log Beta (CI 95\%)** & \(p\)**-Value** \\ \hline Individual level & & & \\ Age (continuous variable) & \(-\)0.03 (\(-\)0.45—0.005) & 0.015 & \(-\)0.18 (\(-\)0.03–0.00) & 0.047 \\ Sex (ref = Fem) & & & \\ Male & 0.47 (0.09–0.86) & 0.016 & - & - \\ Diabetes (ref = no) & & & \\ Yes & 0.48 (\(-\)0.09–1.06) & 0.098 & 0.55 (0.08–1.02) & 0.020 \\ Hypertension (ref = no) & & & \\ Yes & \(-\)0.10 (\(-\)0.56–0.35) & 0.638 & - & - \\ Antihypertensive use (ref = no) & & & \\ Yes & \(-\)0.12 (\(-\)0.62–0.38) & 0.636 & - & - \\ \hline \hline \end{tabular}
\end{table}