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- W4382249235 abstract "For the purpose of orthodontic treatment of children with congenital cleft lip and palate, various orthodontic constructions are used. The use of removable appliances indicated for narrowing or shortening of the dental arches, anomalies of the individual teeth position. The question of determining the magnitude of force reactions around special devices (clasps) that are designed to fix appliances on teeth during treatment, under the conditions of the specificity of the development of the upper jaw and the impact of surgical interventions on it, requires detailing, which determined the purpose of this research. A three-dimensional 3D simulation model was created based on digital data of the spatial geometry of a sample of orthodontic appliance used for orthodontic treatment of children with congenital unilateral cleft lip and palate. Mathematical modeling methods were used to study the stress-deformed state of the appliance and estimate the magnitudes and distribution of the amplitudes of force reactions around its fasteners (clasps). Force reactions around of the supports of the orthodontic appliance when the screw is rotated from 0° to 360° (axial movement by 1 mm) are unevenly distributed, with a minimum value of force amplitudes of 10.3 N and a maximum of 30.9 N. It was noted that in the area of fasteners (clasps) placed more distally, the values are higher (30.9 N and 27.6 N) than in the medially placed fasteners (10.3 N and 12.5 N). It is also worth noting that on the side of the base of the appliance, which corresponds to the location of the small fragment of the jaw, the values of the force amplitudes are greater (30.9 N and 12.5 N) than on the side of the large fragment (27.6 N and 10.3 N). A significant dependence of the values of force reactions on the stiffness characteristics of the jaw and the type of force transmission from the orthodontic appliance to its areas was established. Keywords: 3D simulation model, force reactions, clasps." @default.
- W4382249235 created "2023-06-28" @default.
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- W4382249235 date "2023-03-31" @default.
- W4382249235 modified "2023-10-01" @default.
- W4382249235 title "Investigation of the force reactions’ magnitude around the mounts of orthodontic appliances in the process of orthodontic treatment of children with congenital unilateral cleft lip and palate" @default.
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- W4382249235 doi "https://doi.org/10.35339/msz.2023.92.1.fkk" @default.
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