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

Tooth modeling method based on dental crown and tooth root characteristics

A crown and tooth technology, which is applied in the field of tooth modeling based on the characteristics of the crown and root, and can solve the problem that internal information cannot be obtained

Active Publication Date: 2017-01-04
北京赢冠口腔医疗科技股份有限公司
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, 3D laser scanning and multi-eye stereo vision acquisition and reconstruction can only obtain the surface data of the model, and the internal information cannot be obtained

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
  • Tooth modeling method based on dental crown and tooth root characteristics
  • Tooth modeling method based on dental crown and tooth root characteristics
  • Tooth modeling method based on dental crown and tooth root characteristics

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0081] Such as figure 1 with figure 2 Shown, the present invention is based on the tooth modeling method of crown and tooth root feature, comprises the following steps:

[0082] Step 1. Determine the basic information of the tooth: firstly, obtain the crown data through the laser three-dimensional scanner 1, and the laser three-dimensional scanner 1 collects the parameters of multiple segmented and continuous triangular meshes of the crown, and simultaneously obtains the crown width d, The crown thickness h and crown length c data are stored in the memory 3 by the processor 2; then, given the crown-to-root ratio α, neck width-to-crown width ratio β, and neck thickness-to-crown thickness ratio γ of various types of crowns;

[0083] In this embodiment, according to the total of 32 human permanent teeth, the middle symmetry axis of the teeth is called the midline, the direction close to the midline is called the mesial, and the far away is the direction away from the midline. T...

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 tooth modeling method based on dental crown and tooth root characteristics. The tooth modeling method includes the following steps that 1, tooth basis information is determined; 2, the average curvature and the gaussian curvature at a top point of a triangular mesh are determined; 3, the computational processes of the average curvatures and the gaussian curvatures at all the top points of continuous triangular meshes of multiple segmentations of a dental crown are completed; 4, the type of the dental crown is extracted; 5, whether the tooth type is single or not is judged; 6, a tooth model of the single-root tooth is established; 7, the tooth model of the multi-root tooth is established. According to the tooth modeling method, a dental crown model of a single tooth is obtained through a laser three-dimensional scanner, the dental crown and tooth roots are separated, the type of the tooth is determined according to the characteristics of the dental crown, the corresponding tooth root model is established, and the tooth modeling method is high in accuracy, small in calculation quantity, visible, rapid, effective and low in cost.

Description

technical field [0001] The invention belongs to the technical field of tooth modeling, and in particular relates to a tooth modeling method based on the characteristics of a tooth crown and a tooth root. Background technique [0002] Currently, the methods for obtaining 3D dental and jaw data and establishing dental models mainly include 3D laser scanning, multi-eye stereo vision acquisition and reconstruction, and CT image reconstruction. Three-dimensional laser scanning uses the principle of triangulation measurement, and uses CCD to obtain the reflected light of the laser on the surface of the model to obtain model surface data. Three-dimensional laser scanning can obtain data at high speed and high precision. Many scholars have used three-dimensional laser scanning to build tooth model. Multi-eye stereo vision acquisition and reconstruction is a low-cost, easy-to-operate digital acquisition and reconstruction method. It uses two high-pixel CMOS digital cameras to collec...

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
Patent Type & Authority Applications(China)
IPC IPC(8): G06F19/00
CPCG16H50/50
Inventor 李占利高天宇李洪安武璠菲
Owner 北京赢冠口腔医疗科技股份有限公司
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