Preparation method of personalized titanium mesh for bone defect reconstruction in tooth implantation area

Abstract

The invention provides a preparation method of a personalized titanium mesh for tooth implantation area bone defect reconstruction, and the method comprises the following steps: extracting a CBCT image of a maxillofacial region of a patient, establishing a jaw three-dimensional digital model, establishing an alveolar bone defect model, establishing a three-dimensional model of a digital titanium mesh, filling the three-dimensional model of the digital titanium mesh into a solid structure, and obtaining a male die; constructing a female die, placing the titanium screen plate on the male die, and pressing the female die downwards; carrying out compression molding on the titanium mesh, and cutting the edge of the titanium mesh beyond the male die; unfolding the titanium mesh, polishing and thinning the titanium mesh exceeding the alveolar bone defect area, manufacturing retention nail holes, and carrying out secondary compression molding on the unfolded titanium mesh; wherein the titanium mesh formed through compression molding is perfectly attached to the edge part of the alveolar bone of a patient, the shape of the regenerated alveolar bone adapts to the shape of the jaw bone, a printed resin mold is low in cost, the titanium mesh is small in thickness, stimulation to mucosa is small, and the application prospect is good.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and relates to a dental titanium mesh, in particular to a method for preparing a personalized titanium mesh used for bone defect reconstruction in a dental implant area. Background technique [0002] Dental implants are the best way to restore teeth after they are lost. They are stable and reliable, do not need to be removed and worn, and are comfortable and beautiful. They are called "the third set of teeth for human beings". However, due to periodontal disease, long-term repair after missing teeth, etc., there is insufficient bone height and width during implantation. Sufficient bone mass is an inevitable condition to ensure good short-term and long-term restoration effects of implants. Insufficient bone mass will directly affect the functional load of the implant, the short-term and long-term function and aesthetic stability of the implant, and the effective survival time of the impla...

AI Technical Summary

Problems solved by technology

At present, the finished titanium mesh is widely used clinically, but the finished titanium mesh does not fit the anatomical shape of the alveolar bone. During the operation, the titanium mesh must be trimmed and bent after comparing the defect range, which takes a lot of time; It is unavoidable that sharp edges will be formed during the process, which may easily lead to exposure and infection of the titanium mesh after surgery; and due to the limitation of time and molding methods, it is difficult to bend a personalized titanium mesh suitable for complex bone defects, and its clinical application is very limited. Large limitations, only suitable for small and simple bone defects

3D printing digital personalized titanium mesh is suitable for various types of bone defects, but this technology is currently in the clinical trial stage and cannot be widely used clinically, and pure titanium printers are very expensive and difficult to popularize, and the titanium mesh produced is far more expensive than finished titanium. network

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