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Preparation method of split jaw defect prosthesis

A split-type, jawbone technology, applied in the medical field, can solve problems such as the poor combination effect of the occluder and the removable partial denture, the defect in the sealing effect of the occluder, and the difficulty in obtaining functional unity, so as to reduce manual processing operations, Reduce the occurrence of treatment complications and improve the sealing effect

Active Publication Date: 2018-08-14
SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are still three deficiencies in current research in this area: ①The integration of digital design is low, still requires a lot of manual operations, and the technical sensitivity is high; Inconvenient to use
Although there is a split prosthesis design, the combination effect of the occluder and the removable partial denture is poor, and it is difficult to achieve functional unity; ③The sealing effect of the occluder is still flawed

Method used

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  • Preparation method of split jaw defect prosthesis
  • Preparation method of split jaw defect prosthesis

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Embodiment Construction

[0027] The present invention will be further described below in conjunction with specific examples, so as to better understand the present invention.

[0028] Such as figure 1 Shown, the preparation process of the embodiment of the present invention is as follows

[0029] 1) Put a cotton roll in the maxillary vestibular groove area of ​​the patient to separate the buccal mucosa, instruct the patient not to touch the palate with the tongue and perform a spiral CT scan with the mouth slightly open. Three-dimensional reconstruction was carried out, and a three-dimensional digital model (STL format) of the patient's maxilla was obtained after point cloud denoising, triangular faceting, and surface smoothing. Segment the 3D data of the soft tissue of the patient, and extract relevant data such as the maxillary dentition, maxillary vestibule, palate, defect cavity, and nasal cavity for the 3D design of the obstructor.

[0030] 2) According to the three-dimensional data of soft and...

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Abstract

The invention provides a split type jaw defect obturator prosthesis manufacturing method. A complete digital jaw defect obturator prosthesis technical-manufacturing route is established and is almost suitable for all jaw defect patients. The treatment process is greatly simplified, manual processing operation is greatly decreased, the pain of the patients is relieved, and the complicated obturator prosthesis model taking process is simplified into removable partial denture model taking of conventional dentition defect. The obturator prosthesis manufacturing precision and efficiency are improved, an obturator closing effect is improved, a production period is shortened, and the split type jaw defect obturator prosthesis manufacturing method has a very high practical value.

Description

technical field [0001] The invention belongs to the field of medicine, and in particular relates to a method for preparing a split jaw defect prosthesis. Background technique [0002] Due to oral and maxillofacial tumors, trauma, deformities and other reasons, the partial defect of the maxilla and the connection of the oral and nasal cavities will bring many obstacles to the physiological functions of the patients, such as high nasal sound, oral and nasal leakage during eating, and masticatory dysfunction. Moreover, jaw defects accompanied by facial deformities may cause serious psychological disturbances in patients. Faced with this situation, the traditional repair method is to obtain a complete plaster model by taking an impression of the defect area, and then rely on the technician to manually make an integrated prosthetic denture based on the stopper, so as to repair the patient's defect. Hard tissue separates the oral and nasal cavity and restores part of the patient'...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61F2/28B33Y50/00B33Y10/00
CPCA61F2/28A61F2002/2889B33Y10/00B33Y50/00
Inventor 顾晓宇焦婷张富强熊耀阳孙健朱陈元
Owner SHANGHAI NINTH PEOPLES HOSPITAL SHANGHAI JIAO TONG UNIV SCHOOL OF MEDICINE