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Quantitative evaluation method of compatibility of removable partial denture cast metal support

A quantitative evaluation and casting metal technology, applied in medical science, dentistry, dentures, etc., to achieve the effect of simple operation, optimized processing technology, and high detection accuracy

Inactive Publication Date: 2014-08-27
SHENZHEN POLYTECHNIC
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0011] The invention provides a quantitative evaluation method for the suitability of removable partial denture cast metal brackets, aiming to solve the problems existing in traditional evaluation methods

Method used

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  • Quantitative evaluation method of compatibility of removable partial denture cast metal support
  • Quantitative evaluation method of compatibility of removable partial denture cast metal support
  • Quantitative evaluation method of compatibility of removable partial denture cast metal support

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Embodiment Construction

[0035] In this method, the materials and equipment required are as follows, one maxillary standard dentition defect impression (for making the original plaster model), superhard gypsum powder, silicone rubber for replica, base wax, optical scanner and Geomagic Qualify12.0 software.

[0036] figure 1 Show the flow chart of the quantitative evaluation method of removable partial denture casting metal bracket suitability provided by the present invention, and its detailed description is as follows:

[0037] In step S1, in this step, superhard gypsum powder and standard dentition defect impression are used to make a standard dentition defect gypsum model (primary gypsum model).

[0038] In step S2, in this step, the RPD casting metal bracket of the removable partial denture is made on the plaster model of the standard dentition defect; in the process of making, the traditional technology is used to make the wax model of the metal bracket, and the wax model made After embedding, ...

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Abstract

The invention is suitable for the field of analyzing compatibility of false teeth and provides a quantitative evaluation method of compatibility of a removable partial denture cast metal support. The method comprises the following steps: A, preparing a standard dentition defect plaster model; B, preparing an RPD cast metal support on the standard dentition defect plaster model; C, preparing a plaster model containing RPD metal support tissue surface shape by a complex method; D, evaluating the compatibility of the RPD metal support by applying an optical scanning three-dimensional measurement method. By adopting quantitative analysis, the first-phase preparation is simple to operate, the detection result reflected by numerical values is objective and reliable, the detection precision is high, and the fine deformation of the RPD metal support can be further detected. By observing a 3D comparative result graph, the part with poor compatibility can be quickly found to facilitate subsequent processing error analysis, so that the processing process is optimized.

Description

technical field [0001] The invention belongs to the field of denture suitability analysis, in particular to a quantitative evaluation method for the suitability of cast metal brackets of removable partial dentures. Background technique [0002] The metal frame of removable partial denture (RPD) is traditionally made by investment casting method, and its suitability is an important index to evaluate its manufacturing accuracy. However, due to the complex structure of the RPD metal stent, there are gaps in the three-dimensional space between the RPD metal stent and the oral tissue, so the quantitative evaluation of its suitability is a difficult problem. [0003] The methods currently used to assess the suitability of cast metal frameworks for removable partial dentures include the following: [0004] 1. In-place method: The finished RPD cast metal bracket is placed on the plaster model, and then the main parts such as the clasp, occlusal rest, and connector are manually obse...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C19/04A61C13/08
Inventor 牛茂李月许在俊
Owner SHENZHEN POLYTECHNIC
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