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Prodn method of computer aid generating positioning board

A computer-aided, manufacturing method technology, applied in the fields of medical science, dentistry, dental prosthesis, etc., can solve the problems that there are no identical or similar literature reports, the accuracy is difficult to guarantee, and the operator's requirements are high, so as to improve the production accuracy and production. Efficiency, shortening operation preparation time, and the effect of accurate and precise positioning

Inactive Publication Date: 2006-09-20
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The whole process is cumbersome, and sometimes it is even necessary to repeatedly make several plaster models to get a relatively satisfactory model, and when installing the model on the _ frame, the operator has high requirements and the accuracy is difficult to guarantee
[0004] After searching the prior art literature, it is found that there are no literature reports identical or similar to the subject of the present invention so far

Method used

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  • Prodn method of computer aid generating positioning board
  • Prodn method of computer aid generating positioning board
  • Prodn method of computer aid generating positioning board

Examples

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Embodiment Construction

[0024] The following examples are provided in conjunction with the content of the method of the present invention:

[0025] figure 1 Shown is the three-dimensional model of the cranio-maxillofacial bone tissue of the patient in this embodiment. After preoperative stereoscopic measurement and analysis, a surgical plan is formulated: perform sagittal split osteotomy on the patient's mandible and retract it, and simultaneously The bone was subjected to a Lefort I osteotomy and moved forward, allowing the patient to restore the normal facial shape and occlusal relationship. In order to accurately realize the osteotomy of the surgical simulation during the operation, it is necessary to make a double-plate to ensure the accurate fixed position of the mandible and maxilla. To make the first _board—the middle_board, after the position of the mandible is determined, simulate the movement of the maxilla, and make the second _board——the final_board based on the fixed mandible and free m...

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Abstract

A method for preparing the locating bite plate under the help of computer includes rebuilding the 3D model of maxillary surface based on the data obtained by CT scanning, opening the upper and lower teeth by 1-2mm, designing a thin strip model, putting it between upper and lower teeth, Boolean subtracting to obtain the bite plate model, fast preparing the prototype of bite plate, and disinfecting.

Description

technical field [0001] The invention relates to a manufacturing method in the field of computer application technology, in particular to a manufacturing method of computer-aided positioning boards. Background technique [0002] Positioning plate is a commonly used fixator in orthognathic surgery. In addition to stably fixing and maintaining the obtained relationship, positioning plate can also accurately realize the quantitative movement of the jaw in three-dimensional space, ensuring that the teeth can be moved after surgery. Maintain the intended occlusal relationship. Therefore, the application of the positioning board can ensure the accurate implementation of the surgical plan determined by the preoperative simulation during the operation, ensure that the teeth can maintain the expected occlusal relationship after the operation, realize the quantitative movement of the position of the jaw, and more stably fix and maintain the desired position. The obtained_relationship....

Claims

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Application Information

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IPC IPC(8): A61C13/003A61C13/24
Inventor 王成焘林艳萍
Owner SHANGHAI JIAO TONG UNIV
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