One-step formed integral baked porcelain crown bridge and manufacturing method thereof

Abstract

The invention discloses a one-step formed integral baked porcelain crown bridge and a manufacturing method thereof. The integral baked porcelain crown bridge is formed by digitally and automatically carving a cobalt-chromium baked porcelain alloy disc material for denture carving, is provided with continuous 2-14 crowns and is used for being fixed on an oral abutment or an implantation abutment. The manufacturing method comprises the following steps: scanning an oral gum structure of a whole patient or an oral impression of the patient by adopting an oral three-dimensional scanner to obtain data; manufacturing a model by using CAD design and CDM typesetting and transmitting the data to a five-axis linkage tooth carving machine; and then carrying out digitalized automatic engraving on the cobalt-chromium baked porcelain alloy disc for engraving the false tooth. According to the integral baked porcelain crown bridge, the original procedures of casting, cutting, welding, polishing and thelike are omitted; the difficulties of crown and bridge deformation, incapability of being in place and the like caused by a traditional casting process, a 3D printing high-temperature sintering process and a crown and bridge high-temperature sintering process for manufacturing zirconium oxide ceramic blocks are solved; the manufactured baked porcelain crown bridge is close in edge, more accurate,more comfortable and more attractive, particularly brings good news to a large number of patients who cannot do dental implants and lack teeth, and is an important milestone for development of the oral rehabilitation process.

Description

technical field [0001] The invention relates to the technical field of oral restoration, in particular to a one-time integral porcelain-fused-to-metal crown and bridge and a manufacturing method thereof. Background technique [0002] At present, porcelain teeth on the market are mainly all-ceramic teeth, pure titanium baked-plastic teeth (non-pure titanium or titanium alloy porcelain teeth, titanium and porcelain powder cannot be combined) and metal casting or 3D printing cobalt-chromium alloy porcelain teeth , using zirconia to make all-ceramic crowns or crowns and bridges, granular metal fusion casting crowns or crowns and bridges, and cobalt-chromium ceramic metal powder 3D printing crowns or crowns and bridges. Not only a single crown, but more than two consecutive crowns and bridges are made using high-temperature processing technology. The crowns are deformed, especially the crowns and bridges are easily deformed and cannot be placed in place. The crowns and bridges ar...

AI Technical Summary

Problems solved by technology

Although some companies are now using CAD / CAM tooth carving machines to make dentures, so far no company has disclosed that they can carve two or more continuous overall long porcelain crowns and bridges. Professional technicians in this industry cannot easily think about the continuity of carving The overall crowns are because the materials they use are not satisfactory, and the manufacturing process mostly adopts artificial bite molds, the precision is not high, and the engraving equipment cannot achieve high precision, and there will be defects such as grinding and repairing.