Oral medicine practice model formed through encapsulation injection molding and method thereof

Abstract

The invention discloses an oral medicine practice model formed through encapsulation injection molding and a method thereof. The model comprises an alveolar bone formed through injection molding. Multiple alveolar sockets are formed on the top surface of the alveolar bone according to the practice requirements. A locating and connecting structure used for being fixed on an encapsulation mould cavity and a head imitation mould is formed on the bottom surface of the alveolar bone. An encapsulation groove is formed at the circumferential side of the alveolar bone and close to the bottom surface. Soft tissues are formed on the top surface and the circumferential side of the alveolar bone through encapsulation injection molding. The part, which extends to the internal wall of the alveolar sockets, of the soft tissues is provided with periodontal membranes. Teeth are fixed on the periodontal membranes in the alveolar sockets. The alveolar bone is firstly formed through injection molding, and then the soft tissues are formed on the alveolar bone through encapsulation injection molding so that the soft tissues and the alveolar bone are enabled to be evenly and compactly combined, the combination effect is close to the clinical requirements, and the combination quality stability is greatly enhanced. Encapsulation of the alveolar bone is completed in the process of injection molding formation of the soft tissues so that the production efficiency is greatly enhanced, and 1000 models can be formed through encapsulation in 24 hours per day.

Description

technical field [0001] The invention relates to a method for making a dental practice model, in particular to a method for encapsulating injection molding of a dental practice model and a dental practice model produced by the method. Background technique [0002] The combination process of soft tissue (referring to gingival tissue, oral mucosa, etc.) and bone (alveolar bone) and teeth in the existing oral practice model is: the soft tissue and bone are formed separately, and after forming, the mechanical buckle of the original design is used. to fit together, or bond with glue. [0003] The disadvantage of mechanical chimerism is that the soft tissue and bone do not have a close clinical combination effect, and flap practice cannot be performed. [0004] If it is bonded with glue, it is labor-intensive; because the soft tissue is soft glue, it is difficult to locate during operation; the soft tissue material reacts with glue solvent or curing agent to swell, resulting in de...

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of mechanical chimerism is that the combination of soft tissue and bone is not close to the clinical effect, and flap practice cannot be performed

[0004] If it is bonded with glue, it is labor-intensive; because the soft tissue is soft glue, it is difficult to locate during operation; the soft tissue material reacts with glue solvent or curing agent to swell, resulting in deformation, and the bonding effect is not good; the glue is toxic when volatilized, not environmentally friendly and safe Hidden danger, in terms of long-term stability of bonding quality, glue bonding is relatively poor

[0005] In the existing technology, soft tissue is also produced separately by injection method, but the thickness of the soft tissue that meets the clinical requirements is quite different, and the shrinkage rate of the soft rubber is large and the shrinkage rate in each direction is inconsistent, resulting in serious deformation of the product after molding.

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