DEVICE FOR MANUFACTURING DENTURES Russian patent published in 2023 - IPC A61C13/00 

FIELD: medicine; orthopedic dentistry.

SUBSTANCE: invention can be used in the manufacture of dentures. A device is used, including a ball clamping element; clamping cylinder; initial position lock and a set of three setting plates with a lower spherical surface and an upper flat surface with markings of the dental arches of the jaws — from the left half in the form of a semi-ellipse for the upper jaw and from the right half in the form of a parabola for the lower jaw. At the same time, four non-through symmetrical holes with a diameter of 2.0 mm are formed on the upper flat surface of the plates, an oval-shaped through hole 25 mm long with rectangular grooves for fixing the body of the ball mechanism and the nut is made opposite from the two surfaces of the plates, with the possibility of movement in the sagittal plane; a square-shaped rod with millimeter divisions with a hole and a thread in the lower end part, made with the possibility of fixing the plates. The body of the ball mechanism has a lower edge of a rectangular shape, corresponding to the rectangular grooves of the setting plate, and a threaded rod and a nut, while a threaded through hole for the activating screw is made along the transversal axis of the body of the ball mechanism. In the process of orthopedic treatment, a removable plastic oval-shaped plate with an indicator of the middle of the face, after registering the position of the upper jaw in the human skull, is placed in the blind holes of the setting plate, mounted on the lower frame of the articulator in a neutral position using the initial position lock. The model of the upper jaw is fixed with a mounting plate to the upper frame of the articulator, the device for making prostheses is removed from the lower frame of the articulator. The model of the upper jaw is compared with the model of the lower jaw, the latter is fixed with a mounting plate to the lower frame of the articulator. The model of the upper jaw is removed from the upper frame of the articulator, and a device for making dentures is installed. Using a ball clamping element, a setting plate is installed in accordance with the location of the occlusal plane and the manufacture of lower jaw dentures is carried out, focusing on the marking of the right half of the setting plate, creating an oval of the lower dentition in the form of a parabola, the position of the teeth and their tubercles, and removing the device for making dental prostheses. prostheses from the articulator, a model of the upper jaw is installed and upper dentures are made in accordance with the laws of occlusion and articulation, focusing on the marking of the left half of the setting plate, creating an oval in the form of a semi-ellipse, the location of the teeth and their tubercles.

EFFECT: method, by obtaining functional occlusion in accordance with the patterns of orthognathic occlusion, allows transferring the exact position of the patient's occlusal plane, ensuring the symmetry of the right and left sides with removable and fixed dental prosthetics and eliminating possible complications after treatment.

1 cl, 12 dwg, 1 ex