Unlock instant, AI-driven research and patent intelligence for your innovation.

Dental prosthesis

A technique for dentures, teeth, applied in the field of metal-free dentures

Inactive Publication Date: 2007-09-05
阿德南‧博兹代米尔
View PDF3 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This results in the overall long period of time required to manufacture the ceramic coping

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
  • Dental prosthesis
  • Dental prosthesis
  • Dental prosthesis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention relates to a method for the manufacture of ceramic copings, in particular fused alumina copings, more particularly crystal hardened fused alumina bobbin copings for non-metallic dentures. Before starting to fabricate any type of coping, the standard preparatory steps are:

[0040] i) preparing the tooth to be restored in such a way as to facilitate the adhesion of the denture;

[0041] ii) taking negative impressions of the prepared teeth;

[0042] iii) Forming the prepared frontal impression of the teeth based on the negative impression, which is called a stamper or tooth model.

[0043] A coping can then be fabricated based on this tooth model. Any conventional material suitable for use in producing dental models, especially plaster, can be used here. Typically, a complete negative impression of the oral cavity is taken from the patient, and a complete positive impression of the oral cavity is made. Then, individual tooth models of the teeth ...

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

PropertyMeasurementUnit
thicknessaaaaaaaaaa
flexural strengthaaaaaaaaaa
flexural strengthaaaaaaaaaa
Login to View More

Abstract

The method for producing ceramic coping of the present invention comprises the following steps: (i) covering a tooth model with at least one layer of plastic; (ii) coating a plastic covered tooth model from step (i) with fused alumina gel and letting it dry to form a ceramic coping in green state; (iii) sintering the ceramic coping in green state from step (ii) at a temperature from 950 to 12000C; (iv) coating the ceramic coping from step (iii) with crystal powder; (v) crystal hardening the crystal powder coated ceramic coping from step (iv) at a temperature up to 11800C. Then, the finished ceramic coping - crystal hardened ceramic coping can be coated with an outer aesthetic layer to form a dental prosthesis.

Description

technical field [0001] The present invention relates to metal-free dentures. In particular, the present invention provides methods for fabricating metal-free dentures with internal support structures. Background technique [0002] Dentures, such as crowns or dentin bridges, usually consist of an inner support structure and an outer aesthetic layer. In dental terminology, the internal support structure of a denture is called a coping. For Porcelain Fused Metal (PFM) dentures, the coping is made of metal. PFM dentures face obvious drawbacks as they do not fit the mouth well. During the manufacture of PFM dentures, if the edges of their metal copings are miscalculated, adjustments are impossible. Although the metal coping increases the mechanical strength of the synthetic PFM denture, it presents a grayish tinge in the outer aesthetic layer, resulting in a low aesthetic value of the synthetic PFM denture. Metal copings are also not biocompatible because the corrosive natur...

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): A61C13/00A61C5/10A61C5/77
CPCA61C5/10A61C13/0003A61C5/77A61C13/00
Inventor 阿德南·博兹代米尔
Owner 阿德南‧博兹代米尔