Preparation method of personalized and integrated all-ceramic post-and-core of dentistry

A post and core and dental technology is applied in the field of personalized and integrated all-ceramic post and core preparation for repairing large-area defects in teeth, and can solve the problem of root canal shape scanning with optical scanners, limited optical scanner accuracy, and impact on restorations. Accuracy and other issues, to achieve the effect of saving repair materials, reducing errors, saving clinical operation time and technician production time

Inactive Publication Date: 2013-05-08
PEKING UNIV SCHOOL OF STOMATOLOGY
View PDF11 Cites 25 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, for the preparation of integrated all-ceramic post and core in the past, the root canal diameter after root canal preparation is generally less than 2.0mm, and the depth is about 6.0-8.0mm. Due to the limitation of the accuracy of optical scanners, conventional optical scanners cannot directly Root canal shape scanning usually uses direct or indirec

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
  • Preparation method of personalized and integrated all-ceramic post-and-core of dentistry
  • Preparation method of personalized and integrated all-ceramic post-and-core of dentistry
  • Preparation method of personalized and integrated all-ceramic post-and-core of dentistry

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] Below in conjunction with accompanying drawing and actual case, the present invention is described in further detail, concrete implementation case:

[0023] It is proposed to perform aesthetic restoration of all-ceramic post-core crowns on teeth with large defects in maxillary central incisors. Firstly, the post-core root canal tooth was prepared conventionally, and the edge of the root canal mouth was rounded and blunt. The optical digital impression was obtained by direct intraoral scanning, and the occlusal relationship between the opposing teeth and centric occlusion was scanned at the same time. Input the scanned three-dimensional digital information into the computer, and use computer-aided design software (CAD) to reconstruct the virtual working model of the jaw, such as Figure II a. According to the distance and occlusal relationship of the mesial and distal teeth, as well as the size and shape of the tooth with the same name, the corresponding program of crow...

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 provides a manufacture method of a clinical personalized and integrated all-ceramic post-and-core of dentistry. The manufacture method is characterized in that a high-precision and short-wavelength visible scanner is adopted and directly used for scanning intraoral defected teeth subjected to root canal preparation, the CAD/CAM (Computer Aided Design/Computer Aided Manufacturing) central incisor prosthetic design is adopted, the design of integrating the post and the core is accomplished, and then the incisor back-cut method design is carried out to accomplish the design of the integrated all-ceramic post-and-core, and numerical control processing equipment is adopted and used for processing in order to accomplish the manufacture of the all-ceramic post-and-core.

Description

【Technical field】 [0001] The invention relates to the field of dental restorations, in particular to a method for preparing a personalized integrated all-ceramic post and core for repairing large-area defects of teeth. 【Background technique】 [0002] Large-scale tooth defects caused by dental caries, trauma, etc. usually require post-core crown restoration to restore the shape of the affected tooth and the defective tooth tissue, and more importantly, restore the physiological function of the affected tooth. Conventional metal post-core and metal-ceramic crown restoration can not only restore the patient's function, but also take into account the aesthetics. However, with the continuous development of repair technology and the continuous improvement of people's research and understanding of repair materials, metal post cores, especially non-precious metal post cores, usually contain nickel and chromium, both of which are a kind of allergens. 10% of the population will have ...

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): A61C5/10G06F17/50A61C5/77
CPCA61C5/04A61C5/77A61C13/0004A61C13/30G16H20/40
Inventor 周团锋王新知
Owner PEKING UNIV SCHOOL OF STOMATOLOGY
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap