## 4 Discussion
Specifically, the TRIOS(r)3 intraoral scanner has demonstrated an exceptional accuracy of 6.9 \(\upmu\)m, setting a new standard in the field. Moreover, this error limit of 6.9 \(\upmu\)m, compared with the range from 9.8 to 45.2 \(\upmu\)m demonstrated by other intraoral scanners available on the market at the time of the examination, was the lowest value [18]. This study's comprehensive analysis of the variability in maxillary incisor CrVS morphology finds a notable alignment with the findings reported by [PERSON] et al. [8] and [PERSON] and [PERSON] [10]. These studies, including ours, consistently observed a greater degree of CrVS variability in the lateral upper incisors as compared to the central incisors. This observation is significant as it underscores a consistent pattern in maxillary incisor morphology across different research methodologies. However, it is imperative to exercise caution when drawing direct comparisons between these studies and our own. The differences in research methodologies, ranging from the tools used to the sample sizes could potentially introduce a degree of bias, affecting the validity of a direct comparison. The implications of our findings become particularly salient when examining the prescribed torque in orthodontic treatments for lateral incisors. Here, the prescribed torque varies from +3\({}^{\circ}\) in the Andrews system, moving to +8\({}^{\circ}\) in the Roth system, and reaching up to +10\({}^{\circ}\) in the MBT system. Our study observed that the mean change in lateral incisor torque ranged from \(-\)1.4\({}^{\circ}\) to 3.5\({}^{\circ}\), with a standard deviation from 3.0\({}^{\circ}\) to 4.1\({}^{\circ}\). This finding is indicative of a potentially significant impact of the CrVS on the treatment outcomes for lateral incisors. The variability in torque prescriptions and the observed changes in our study highlight the need for a more tailored approach and the customization of orthodontic appliances considering the unique morphological characteristics of lateral incisors. The results for the central incisors showed no statistical significance. Despite this, the scenario is different for central incisor brackets. The range of prescribed torque is broad, spanning from +7\({}^{\circ}\) in the [PERSON] prescription to +12\({}^{\circ}\) in the [PERSON] prescription, and extending to +17\({}^{\circ}\) in the MBT system. Our study's findings indicate a mean torque change from 0.6\({}^{\circ}\) to 1.6\({}^{\circ}\) with a standard deviation between 3.3\({}^{\circ}\) and 4.3\({}^{\circ}\). This suggests that even if the results were statistically significant, the CrVS of the central incisors may not have a substantial impact on the overall treatment results. Furthermore, it is essential to emphasize that our conclusions are drawn from the analysis of mean values, which provides a general overview but may not capture individual variations. Our study revealed that the vestibular surface morphology changed the torque value by 4\({}^{\circ}\) to 7\({}^{\circ}\) in 30% of the analyzed incisors and by more than 7\({}^{\circ}\) in 6.5% of cases. These variations are not just statistically significant but could also lead to clinically apparent changes in the torque prescribed in the bracket. This degree of change underscores the importance of individualized treatment planning in orthodontics, where the unique morphological characteristics of each tooth are taken into consideration to optimize treatment effectiveness and efficiency. The inherent challenge in accurately determining the long axis of the tooth has been a significant limitation in our study, as it precluded us from providing a definitive quantitative value for the incisor inclination that results from bracket placement. This aspect is crucial in orthodontic treatment planning, as the long axis plays a key role in determining the optimal position of teeth. Despite this limitation, our research offers valuable insights into the influence of tooth surface morphology on the position of orthodontic brackets.