Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Quick transitional mending method based on triangular mesh of denture base crown

A technology of triangular mesh and base crown, which is applied in the field of denture restoration, can solve the problem that the surface generation speed is difficult to be further improved, and achieve the effect of improving the surface generation speed, optimizing the mesh model, and ensuring uniform distribution.

Active Publication Date: 2015-04-08
FOSHAN NUOWEI TECH
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, in the traditional skinning method, it is necessary to construct a NURBS surface when generating a skinned surface, and it is difficult to further improve the surface generation speed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Quick transitional mending method based on triangular mesh of denture base crown
  • Quick transitional mending method based on triangular mesh of denture base crown
  • Quick transitional mending method based on triangular mesh of denture base crown

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0040] The specific embodiment of the present invention will be further described below in conjunction with accompanying drawing:

[0041] refer to figure 1 , a method of rapid transitional stitching based on the triangular mesh of the base and crown of the denture, including the following steps:

[0042] A. Read the tooth model that needs to be stitched, and generate a triangular mesh model with a triangular mesh topology, and the triangular mesh model includes an inner surface and an outer surface;

[0043] During the restoration of denture crowns, equidistant offsets are performed to obtain two offset surfaces, one of which is wrapped inside the other, the inner offset surface is the inner surface, and the other offset surface is the outer surface. surface.

[0044] B. Acquiring the seamed boundary points of the triangular mesh model;

[0045] C. Calculate the equidistant point set of the inner surface;

[0046] D. Calculate the outer surface ridge point set;

[0047] ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses a quick transitional mending method based on a triangular mesh of a denture base crown. The method includes the steps of reading a tooth model to be sutured to generate a triangular mesh model; acquiring suture boundary points of the triangular mesh model; calculating an inner surface equidistant point set and an outer surface ridge line point set; performing interpolation according to the two sets to obtain a ridge line set; calculating fitting points of ridge lines according to the ridge line set; according to the fitting points, constructing clockwise a topological relation to generate a transitional face so as to suture the suture boundary points and the transitional face. Compared with the traditional skinning method, the method has the advantages that construction an NURBS (non-uniform rational B-splines) surface is not required, surface generating speed is increased, even distribution of smoothness mesh points on the transitional face is guaranteed, and a generated mesh model is optimized. The method is widely applicable to the field of denture repairing.

Description

technical field [0001] The invention relates to the field of denture restoration, in particular to a rapid transitional stitching method based on the triangular grid of denture base and crown. Background technique [0002] In the denture restoration CAD / CAM system software, the restoration of the simple crown of the denture is generally divided into three parts, including the extraction of the cervical margin, the offset of the isometric plane, and the transition suture of the base crown. The three parts are inextricably linked to the denture restoration process. Due to the equidistant offset in the restoration process of the denture crown, there will be two surfaces, the inner and outer surfaces, and there is a gap between the inner and outer surfaces, so it is necessary to use the transition stitching algorithm to splice the curved surfaces. In the design process, it is often necessary to stitch two or more independent mesh models into one mesh model. [0003] The transi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G06T17/30
CPCG06T17/30
Inventor 王煜张继伟夏鸿建马杰刘锦源
Owner FOSHAN NUOWEI TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com