A digital transfer method and system for removable partial dentures in place

A technology of removable denture and transfer method, applied in the field of oral prosthesis, can solve problems such as affecting the quality and stability of the prosthesis production, cumbersome transfer process of the common seating channel, etc., so as to shorten the chairside operation time, improve the production quality and stability The effect of sex, simple repair

Active Publication Date: 2021-07-02
FOURTH MILITARY MEDICAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the above-mentioned problems, the present invention provides a method and system for the digital transfer of a removable partial denture joint in place, which solves the problems in the existing RPD production that the joint in place transfer process is cumbersome and affects the quality and stability of the prosthesis

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  • A digital transfer method and system for removable partial dentures in place
  • A digital transfer method and system for removable partial dentures in place
  • A digital transfer method and system for removable partial dentures in place

Examples

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Embodiment 1

[0045] This embodiment discloses a method and system for digital transfer of removable partial dentures together in place, the method specifically includes the following steps:

[0046] Step 1. Obtain the initial impression of the patient's dentition defect, pour it into the initial model, and determine the direction of the common insertion path;

[0047] Specifically, in this embodiment, a patient with dentition defect is selected, and the initial impression of the patient's dentition defect is obtained, and poured into a plaster model, which is the initial model 1, such as figure 1 shown. On the wire viewer 2, adjust the model from front to back, left, and right by the uniform concave method, so that the undercuts are evenly distributed on the mesial and distal surfaces of the abutment teeth, so that there are sufficient retention undercuts on the buccal side, and the soft tissue undercuts are minimized .

[0048] Conduct observation and research with Traverse Viewer 2, an...

Embodiment 2

[0062] This embodiment discloses a digital transfer system for the common insertion path of removable partial removable dentures. A digital model acquisition module for dentition defects, a digital model acquisition module for patients with dentition defects with indications of the common insertion path, and a digital transfer module for the common insertion path.

[0063] The initial model acquisition module of the patient's dentition defect is used to obtain the initial impression of the patient's dentition defect, pour it into the initial model, and determine the direction of the common insertion path;

[0064] Specifically, use the Traverse Viewer 2 to conduct observation and research, and determine the common placement path of the RPD, and use the carbon rod on the Traverse Viewer to draw the wires on the initial model. And mark the parts that need to be adjusted in the mouth on the abutment teeth, such as the position of the high point of the shape, the area that needs t...

Embodiment 3

[0078] This embodiment is an embodiment of the design and production of RPD, specifically:

[0079] Input the RPD digitized model (i.e. STL file 3) with the direction of the in-place path obtained through the above-mentioned embodiments into the Shape Dental System software, and utilize the software to design the RPD with reference to the transferred in-place path, as Figure 7 As shown, the production of RPD is finally completed through the CAD / CAM / SLM-3D composite system, Figure 8 Shown is a photograph of the finished removable denture in place on the final cast.

[0080] Insert the completed RPD into the patient's mouth, as Figure 9 As shown, it was found that the position was very smooth without any adjustments, and the patient had no discomfort or tenderness. The inspection found that the dentures were very tight. Both patients and doctors are very satisfied.

[0081] It can be seen that the method and system of the present invention have improved the quality and sta...

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Abstract

The invention discloses a method and system for digital transfer of a removable partial denture with a joint in place track. An optical scanning measuring instrument is used to obtain the final model of the patient's RPD and the final model with a common in place track, and rebuild it into a digital model. The two digital models are overlapped, and the bases of the two final models are cut according to the determined common positioning path through CAD software, so that the axial direction of the final model is consistent with the determined common positioning path. The method of the present invention is the basic step of subsequent digital production of RPD, and accurately transfers the common positioning path determined by the doctor to the technician through digitalization, and provides a method for digitally transferring the common positioning path for the standard RPD digital production, getting rid of the traditional method. The cumbersome process of the transfer and common placement method improves the quality and stability of the restoration; at the same time, it improves the clinical efficiency of the restoration of edentulous patients, significantly shortens the patient's chairside operation time, and reduces the number of follow-up visits due to discomfort .

Description

technical field [0001] The invention belongs to the technical field of oral prosthetics, and in particular relates to a digital transfer method and system for a common in-position channel of removable partial movable dentures. Background technique [0002] Removable partial dentures (RPD) use natural teeth, sub-base mucosa and bone tissue as support, rely on denture retainers and bases for retention, use artificial teeth to restore the shape and function of missing teeth, and use bases to restore the shape and function of missing teeth. The material restores the shape of the defective alveolar ridge, jawbone and the surrounding soft tissue, and the patient can remove and wear it by himself. Removable partial dentures are still the most commonly used repair method for dentition defects in my country. RPD is generally composed of rests, retainers, connectors, bases, artificial teeth and other components. The surface of the RPD base is divided into a polished surface and a tis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61C13/34A61C13/00G06F30/20G06T17/00
CPCA61C13/0004A61C13/34G06T17/00G06T2210/32G06T2210/41G06F30/20
Inventor 张燕高勃于海李恺
Owner FOURTH MILITARY MEDICAL UNIVERSITY
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