Gel-based composite material for oral cavity practical training model, preparation method and forming technology

Abstract

The invention discloses a gel-series composite material for an oral cavity practical training model, and a preparation method thereof. The gel-based composite material has the advantages of low modulus and high moisture content, and is very similar to the structure and the mechanical property of the practical oral cavity soft tissues of the human body, and the defects of a traditional oral cavitysoft tissue simulation material can be overcome. The invention also provides an oral cavity practical training model and a forming technology on the basis of the gel-based composite material. The oralcavity practical training model comprises a bone model, a periosteum model and a soft tissue model, wherein the periosteum model is attached to the bone model through gum, and then, the gel-based composite material is injected and formed and is combined to one surface, which has a porous structure, of the periosteum model. Therefore, on one hand, the oral cavity practical training model enhancesand improves the material of the oral cavity soft tissue, on the other hand, the bone model and the soft tissue model are connected through the periosteum model, and therefore, the problem of poor binding ability to the bone model material of the gel-based composite material after being formed and cured is solved.

Description

technical field [0001] The invention relates to the technical field of practice oral cavity training models, in particular to a gel-based composite material used for oral cavity training models, a preparation method and a forming process. Background technique [0002] In the surgical training of stomatology students, the oral training model must be used. The oral training model is composed of anatomical tissues such as simulated teeth, simulated alveolar bone, simulated gingiva, simulated mucosa, simulated dental pulp, and simulated periosteum. The simulated gingiva, simulated mucous membrane, simulated dental pulp and simulated periosteum all belong to oral soft tissue. The existing materials for simulating oral soft tissues generally adopt silica gel materials, soft polyurethane materials, soft PVC materials, and thermoplastic elastomer materials. These materials all have a common defect, that is: they do not have the moisturizing feeling like the actual oral soft tissue ...

AI Technical Summary

Problems solved by technology

These materials all have a common defect, that is: they do not have the moisturizing feeling like the actual oral soft tissue of the human body, nor do they have viscoelasticity. Some materials are too tough, and it is very laborious to cut them even with a sharp scalpel. Some materials tear The strength is too low, and it is easy to tear the simulated tissue when the suture is pulled during the suturing operation

In addition, from the perspective of the development of models for future medical training, the existing materials for simulating oral soft tissues are all single materials with single chemical and physical properties; while the actual oral soft tissues of the human body are not only composite materials, but also microscopically It is a multi-phase material with structural activity; this is not available in existing single materials, which also makes it impossible for the simulated oral soft tissue materials to show new properties through modification (such as traditional biological materials permeability, water absorption, energy conversion, etc.)

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