Fogorvosi szemle, 2021 (114. évfolyam, 1-4. szám)
2021-12-01 / 4. szám
FOGORVOSI SZEMLE 114. évf. 4. sz. 2021. n 172 Figure 4: Angular measurements used in our study, (a) Frontal view. (b) and (c) Lateral views. Figure 5: The best fit method used, (a) T0 mesh. (b) T1 mesh. (c) The final mesh aligned. a decrease in the lower lip height after bimaxillary surgery (Table 3), which is also demonstratable in descrip tive statistics of the pre-treatment (T0 ) and post-treat ment (T1 ) variables. Statistically significant increases in the nasal tip angle, the lower lip angle, and a decrease in the Inter-labial angle were noticed after the bimaxillary surgery, as seen in Table 4 . We found facial soft tissue changes in both the upper and the lower face regions with a mean of (0.77, 0.67 mm) respectively; the mean deviation at the nasal region was (1.03 mm), with the highest magnitude of the soft tissue changes found in the upper lip region with a mean deviation (3.25 mm). Descriptive statistics of the maximum positive and negative deviation limits and also of the mean limits of the meshes are seen in Table 5, 6. After calculating the deviation in the soft tissue, changes were observed in several further facial landmarks (Table 7) . Discussion Facial soft tissue is dynamic and elastic, and is easily affected by other factors; such as swelling, weight, head position changes, or even by the treatment itself and the underlying hard tissue changes [11 ]. That’s why 2D-fa cial images and cephalometric examination were found to be inadequate methods for soft tissue evaluation after surgical procedures. With advances in 3D technology,
