Method for dyeing all-zirconium tooth by using film

A technology of thin film and zirconium teeth, which is applied in the direction of dentures, etc., can solve the problems of complex process and large operation influence, and achieve the effect of simple operation, high safety factor and flexible coloring method

Active Publication Date: 2012-06-27
SHENZHEN UPCERA DENTAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The method makes dyeing simple and controllable, and solves the problems of complicated process and large operation influence in the existing dyeing technology

Method used

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  • Method for dyeing all-zirconium tooth by using film
  • Method for dyeing all-zirconium tooth by using film
  • Method for dyeing all-zirconium tooth by using film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The polyethylene used in the film of the present invention is linear low density polyethylene (LLDPE) as the main raw material.

[0027] The zirconia material has very good biocompatibility, very high flexural strength, good light transmittance, and the color after dyeing tends to be more natural teeth.

[0028] The invention uses a film to dye the full anatomical zirconia all-ceramic teeth, uses linear low-density polyethylene (LLDPE) as the main raw material, and produces a PE film with strong self-adhesiveness through a multi-layer extrusion process. Printing or printing coloring of the film, cutting and wrapping the coloring film with the appropriate size of the pre-colored crown on the surface of the crown, after heat treatment to transfer the coloring particles to the surface of the crown to be stained, and then sintering, polishing and glazing , complete the entire staining process and get the final restoration. Taking the staining of the restoration of the uppe...

Embodiment 2

[0034] In Step 4, the colored particles are transferred to the surface of the crown to be stained through heat treatment. Two methods can be used in this link: the first one is to heat the wrapped crown in an oven at 60°C. After the colored particles on the film are transferred to the surface of the crown, the film can be removed and then sintered. In the second type, the crown covered with film is directly placed on the support column of the refractory plate and sintered at 1530° C. for 2 hours. Other steps are the same as in Example 1.

Embodiment 3

[0036] In Step 4, the colored particles are transferred to the surface of the crown to be stained through heat treatment. Two methods can be used in this link: the first one is to heat the wrapped crown in an oven at 70°C. After the colored particles on the film are transferred to the surface of the crown, the film can be removed and then sintered. In the second type, the film-wrapped crown is directly placed on the support column of the refractory plate and sintered at 1500°C for 2 hours. Other steps are the same as in Example 1.

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Abstract

The invention relates to a method for dyeing an all-zirconium tooth by using a film. The method comprises the following steps of: producing a polyethylene (PE) film with stronger autohension by taking polyethylene as a main raw material by a multi-layer extrusion process; and printing or print-coloring the film, shearing the colored film of which the size is matched with that of a precolored dental crown and wrapping on the surface of the dental crown, heating to ensure that coloring particles are transferred to the surface of the dental crown to be dyed, sintering, polishing, and glazing to finish the whole dyeing process and obtain a final restoration. The invention has the advantages that: the method is easy to operate, slightly affects the transparency of zirconia dental crowns, and can meet aesthetic requirements of customers on zirconia all-porcelain teeth more easily; the coloring mode is more flexible, and the targeted color printing can be performed according to the requirements of the customers; by the method, the color difference between dental crowns can be intuitively reflected immediately, and the problem that final colors of staining fluid products can be seen only after the staining fluid products are sintered is solved; and the phenomenon of porcelain fracture is avoided, and the safety factor is high.

Description

technical field [0001] The invention relates to a method for staining all-zirconium teeth, in particular to a method for staining all-anatomical zirconia all-ceramic teeth by using a thin film and a coloring method of the thin film. Background technique [0002] Uncolored dental zirconia is mostly white to ivory, with a certain degree of translucency. Although it can easily simulate the color of natural teeth, it cannot meet the clinical requirements for the color of restorations. Its surface often needs to be shaded, which will Part of the transparency of the material is lost, and the color of zirconia itself is adjusted to be consistent with the color, lightness and saturation of the tooth to be restored, so as to obtain a good texture and save the preparation space for clinical abutment teeth. [0003] At present, there are two main methods of coloring zirconia: one is to add colored oxides to zirconia powder, and the prepared color powder is then molded into colored por...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C13/08
Inventor 王鸿娟严庆云郑艳春何玲玲
Owner SHENZHEN UPCERA DENTAL TECH
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