## 3 Results
### Translation (Figure 6, Table 5)  
Based on quantitative and qualitative results, translation seems to be the second most stressful movement after rotation. In intact periodontitis, translation displayed 504.4 KPa at bracket level, with visible stresses in cervical third of radicular dentine, PDL, and alveolar bone socket. Translation is the single movement that displayed a clearly visible stress in coronal pulp. From the 504.4 KPa displayed at bracket level, 13.47-39.67% reaches radicular dentine, 14-36.73% alveolar bone socket, 0.02-0.06% pulp, 0.4-3.51% PDL, and 0.22% NVB. In reduced periodontitis, the increase in quantitative stress results correlated with bone loss. Qualitatively, stress areas extended in the entire radicular dentine with red-orange areas displayed in middle and apical third, being prone to external resorptive and ischemic processes. Quantittively, a visible increase in stress amount during periodontal breakdown was clearly visible in the radicular dentine component ranging from 15.57-49.57% in 1 mm loss up to 62-92.9% in 8 mm loss (more pronounced in radicular middle third after 4 mm bone loss). The absorption-dissipation ability of the other tissular components remained constant, 16.98-41.57% in alveolar bone socket, 0.51-8.37% PDL, 0.02-0.08% pulp, and 0.25-0.32% in NVB during the bone loss process when compared with the other movements. The qualitative coronal pulp stress display remained visible during bone loss, but with a clearly decreasing pattern. Moreover, the qualitative alveolar bone socket stress display showed a decreasing stress pattern. In both intact and reduced periodontitis, 0.6 N seems to be safe for application (only PDL cervical third stress exceeded MHP). Both 0.6 N and 1.2 N showed similar qualitative stress display areas, with a doubling of quantitative results for 1.2 N. PDL displayed stresses exceeding physiological MHP during bone loss simulations, in both middle and cervical  
\begin{table}
\begin{tabular}{l l l l l l l l l l l l} \hline \hline
**Resorption (mm)** & & & **0** & **1** & **2** & **3** & **4** & **5** & **6** & **7** & **8** \\ \hline \multirow{8}{*}{PDL} & NVB & NVB & 1.72 & 2.33 & 2.93 & 3.54 & 4.14 & 4.64 & 5.14 & 5.64 & 6.14 \\  & Pulp & a & 0.15 & 0.21 & 0.27 & 0.33 & 0.38 & 0.43 & 0.48 & 0.52 & 0.57 \\  & c & 0.29 & 0.43 & 0.51 & 0.62 & 0.73 & 0.82 & 0.91 & 0.99 & 1.08 \\  & PDL & a & 2.34 & 3.07 & 3.80 & 4.53 & 5.26 & 6.42 & 7.58 & 8.73 & 9.89 \\  & & m & 4.62 & 6.05 & 7.48 & 8.90 & 10.33 & 12.65 & 14.98 & 17.30 & 19.62 \\  & & c & 18.35 & 25.23 & 32.11 & 38.98 & 45.86 & 51.47 & 57.07 & 62.68 & 68.28 \\ \hline \multirow{8}{*}{Component} & Rotation & Structure \% & & **100** & **100** & **100** & **100** & **100** & **100** & **100** & **100** & **100** \\  & 0.6 N/ 60 gf & \multirow{2}{*}{Tooth + bracket \%} & \multirow{2}{*}{a} & **11.08** & **19.53** & **27.91** & **36.21** & **44.45** & **51.27** & **57.80** & **64.03** & **70.00** \\  & & & m & 11.08 & 27.97 & 44.72 & 61.32 & 77.78 & 81.04 & 84.16 & 87.14 & 89.99 \\  & &  
third (especially after 4 mm of loss, visible red-orange high stress areas), which seem to be prone to ischemic and resorptive processes. The bracket absorption-dissipation ability was 29.04% in 0 mm, 28.79% in 1 mm, and 45.81% in 8 mm loss. The enamel absorption-dissipation ability was 57.49% in 0 mm, 57.44% in 1 mm, and 38.53% in 8 mm loss.