RU1773390C - Method for manufacture of cast dental prosphesis - Google Patents

Abstract

Usage: Refers to medicine, namely to orthopedic dentistry. The purpose of the invention is to stabilize the linear shrinkage of the prosthesis during the modeling process. Summary of the invention: In the process of modeling the intermediate part of the prosthesis, it is reinforced with a metal insert, while the ends of the insert are placed between the supporting parts of the reproduction of the prosthesis. The metal insert is a rod with a diameter of 1.5-2.0 mm. The insert is glued to the supporting parts - crowns, a clasp system on the model, and then wax is layered around the insert and the intermediate part is modeled.

Description

The invention relates to medicine, namely to orthopedic dentistry.

A known method of manufacturing a cast dental prosthesis including preparation of a tooth, imprinting, casting of a model, modeling of reproduction of a prosthesis, and before casting to compensate for shrinkage on the reproduction of the prosthesis from the prosthetic bed, a refractory mass is applied and reinforced with a metal insert (Aut. St. No. 1509064 Cl A 61 C 13/09, 23 09.89).

However, this method of manufacturing solid cast dentures has disadvantages. Manufacturing and casting technology remains difficult: in the first case, due to the need for additional correction of the prosthesis on the abutment teeth during the alignment of the arc, in the second, due to the preliminary manufacture of a refractory micromodel with a metal insert on the reproduction of the prosthesis

The purpose of the invention is the stabilization of linear shrinkage of the prosthesis during the modeling process

The method is carried out as follows. An impression is obtained from dental arrays, and models of teeth are cast from the dental laboratory in an impression. Wax reproduction of the prosthesis is simulated on a plaster model. In this case, the intermediate part of the prosthesis is reinforced with a metal insert in the form of a rod with a diameter of 1.5-2.0 m. The thickness of the rod is determined by the dimensions of the intermediate part so as to ensure layering of the wax with a thickness of at least 1.0-2.0 mm. A metal rod is selected along the length of the intermediate part of the prosthesis and glued to the support crowns on the model, and then wax is layered around the rod (insert) and the intermediate part is modeled. After completion of the simulation of the reproduction of the prosthesis, a common injection technique is carried out. The molded denture is treated, if necessary, by a known method, lined with plastic or porcelain.

This method, while maintaining the generally accepted casting technique, improves quality

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prostheses by stabilizing a linear model over him; reduces the dental consumption of the intermediate part of the prosthesis with wax,

materials, eliminates the stress of converting wax into metal, which differs

skovy workpiece intermediate part that, in order to stabilize the linear

prosthesis. 5 shrinkage of the prosthesis during the modeling process,

Claims (1)

SUMMARY OF THE INVENTION A reinforcement is provided for an intermediate method for manufacturing a cast dental part of a prosthesis by placing a metal prosthesis, including preparing a bar insert in the form of a rod between fight. imprinting of teeth; manufacture of supporting parts of prosthesis reproduction.