A method for initial extraction of oral guides based on VTK

Through the VTK-based oral guide initial extraction method, combined with three-dimensional measurement, sleeve fusion and image expansion technology, the problem of inaccurate measurement in oral implant surgery in the existing technology is solved, the precise design of implant placement is achieved, and the success rate and safety of the operation are improved.

CN115937072BActive Publication Date: 2025-09-09SHENZHEN ZHIHUI HUASHENG TECH CO LTD
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Patent Information

Application Number
CN202210563921.3
Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-05-23
Publication Date
2025-09-09
Estimated Expiration
2042-05-23

AI Technical Summary

Technical Problem

In existing oral implant surgeries, the two-dimensional images of conventional X-rays lead to inaccurate measurements of jawbone density and defect areas, resulting in large deviations in surgical design, affecting the success rate of the surgery and potentially leading to serious consequences. Furthermore, these surgeries require a high level of experience and technical skills from the doctor.

Method used

A VTK-based oral guide initial extraction method is used. Through three-dimensional measurement, sleeve fusion, image area segmentation and three-dimensional data expansion technology, 3D printing technology is used to produce surgical guides to achieve precise design of implant placement and avoid damage to important neurovascular structures.

Benefits of technology

It achieves accurate measurement of oral CT images and medical 3D images, makes sleeve fusion more realistic, and simplifies image segmentation. The 3D image expansion technology facilitates the preliminary extraction of oral guides, thus improving the accuracy and success rate of surgery.

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Abstract

The present invention provides a VTK-based method for initial extraction of oral guides, belonging to the technical fields of oral image measurement, sleeve fusion, image region segmentation, and three-dimensional image data expansion. The method solves the problems of oral CT image and medical three-dimensional image measurement, tooth surface segmentation, and oral guide extraction. The technical solution comprises the following steps: S10, distance and angle measurement; S20, sleeve fusion; S30, tooth region segmentation; S40, tooth region expansion. The beneficial effects of the present invention are as follows: the present invention uses a variety of different methods to conduct algorithmic comparative analysis; the vtkWarpVector method is used for image expansion, and finally the data after tooth surface expansion is 3D printed to obtain an initial extraction sample of the oral guide.
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