Miniscrew sliding mechanics during space closure are potentially risky for unintended vertical changes

Results

The maxillary central incisor exhibited an average extrusion of 2.56 ± 0.18 mm, while the maxillary first molar showed an average intrusion of 1.25 ± 1.11 mm with a distal movement of 0.97 ± 0.99 mm. Additionally, the mandibular plane angle decreased by an average of 0.83 ± 1.65°. All three indices exhibited statistically significant differences.

During space closure using the miniscrew sliding technique, significant changes occurred in both the sagittal and vertical dimensions of the upper dentition. This included extrusion of the maxillary central incisors, intrusion of the maxillary first molars, and a slight counterclockwise rotation of the mandibular plane.

Reference:

Su, H., Zhuang, Z., Han, B. et al. Vertical changes in the hard tissues after space closure by miniscrew sliding mechanics: a three-dimensional modality analysis. Head Face Med 19, 52 (2023). https://doi.org/10.1186/s13005-023-00388-9

Keywords:

Miniscrew, sliding, mechanics, during, space, closure, potentially, risky, unintended, vertical changes, Head & Face Medicine