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A gradient dyeing process for zirconia dentures

A zirconia and denture technology, applied in the field of gradient dyeing process, can solve the problems of rigid color change, unfavorable cost saving, long dyeing time, etc., and achieve the effect of reducing procurement cost, outstanding effect, and short dyeing time

Active Publication Date: 2018-11-23
QINHUANGDAO ZEKENI CERAMIC TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN203749621U discloses the technology of adopting multi-layer materials of different colors to make blanks to obtain zirconia dentures with layered changes in color, but the process is complicated, and the color changes are stiff and uncoordinated
CN104337586A discloses a pressure-molded gradient porcelain block and its manufacturing method. Gradient changes are realized by immersing both ends of the porcelain block in different dyeing solutions. The soaking time is between half an hour and 4 hours, which has the defect that the dyeing time is too long
In addition, it is necessary to purchase gradient porcelain blocks or use expensive externally dyed pastes, and then polish and glaze to achieve a denture gradient close to natural effect, but the above methods are not conducive to saving costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Example 1 Gradient dyeing process of cut A2 and neck A3 zirconia dentures

[0033] (1) Dip dyeing process

[0034] Immerse the pre-sintered zirconia denture in the A2 staining solution for 10 seconds. After the staining is completed, take it out and blot more than the liquid with a dry porcelain pen to obtain the stained zirconia denture;

[0035] (2) The first drying process

[0036] Dry the dyed pre-fired zirconia denture obtained in step (1). The drying time is 10, the distance from the heat source is about 100mm, the drying temperature is not higher than 150°C, and the crown mouth is facing down during drying. dry;

[0037] (3) Brushing process

[0038] Use a ceramic brush to dip the A3 staining solution to paint the pre-fired zirconia denture after drying in step (2). The method of painting is to evenly paint the neck 1 / 3 from the incisal end downward, and do not paint horizontally. Brush, maxillofacial system to brush the central fossa part, forming a multi-le...

Embodiment 2

[0045] Example 2 Gradient dyeing process of A3 zirconia denture

[0046] (1) Dip dyeing process

[0047] Immerse the pre-sintered zirconia denture in the A3 staining solution for 10 seconds. After the staining is completed, take it out and blot more than the liquid with a dry porcelain brush to obtain the stained zirconia porcelain block;

[0048] (2) The first drying process

[0049] Dry the dyed pre-fired zirconia denture obtained in step (1). The drying time is 10, the distance from the heat source is about 100mm, the drying temperature is not higher than 150°C, and the crown mouth is facing down during drying. dry;

[0050] (3) Brushing process

[0051] Use a ceramic brush to dip the A3 staining solution to paint the pre-fired zirconia denture after drying in step (2). The method of painting is to evenly paint the neck 2 / 3 from the incisal end downward, and do not paint horizontally. Brush, maxillofacial system to brush the central fossa part, forming a multi-level col...

Embodiment 3

[0058] Example 3 Gradient dyeing process of cut A2 and neck A3 zirconia dentures

[0059] (1) Dip dyeing process

[0060] Immerse the pre-sintered zirconia denture in the A2 staining solution for 10 seconds. After the staining is completed, take it out and blot more than the liquid with a dry porcelain pen to obtain the stained zirconia denture;

[0061] (2) The first drying process

[0062] Dry the dyed pre-fired zirconia denture obtained in step (1). The drying time is 10, the distance from the heat source is about 100mm, the drying temperature is not higher than 150°C, and the crown mouth is facing down during drying. dry;

[0063] (3) Brushing process

[0064] Use a ceramic brush to dip the A3 staining solution to paint the pre-fired zirconia denture after drying in step (2). The method of painting is to evenly paint the neck 1 / 3 from the incisal end downward, and do not paint horizontally. Brush, maxillofacial system to brush the central fossa part, forming a multi-leve...

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Abstract

The invention relates to a gradient dyeing process of a zirconia denture. The process comprises the following steps: immersing the pre-sintered zirconia denture in a dyeing liquid, dyeing for 10s, sucking up residual liquid after the dyeing process, drying for 10-20 min; coating and coloring part of the dried zirconia denture by a porcelain applying pen to form a color transition effect with multiple layers; drying the colored zirconia denture for 10-20 min; and sintering and crystallizing at sintering temperature of 1480-1530 DEG C for 5 h to obtain the zirconia denture with gradient color. The gradient dyeing process of the zirconia denture provided by the invention has short immersion time, can improve the working efficiency and save the cost, does not need excessive usage of expensive dyeing paste to reach the gradient effect, and conducts direct glazing without polishing; and the process is simple, and prominent in effect.

Description

technical field [0001] The invention relates to a gradual dyeing process of zirconia dentures. Background technique [0002] Currently, in prosthodontics, color and light transmission are an important indicator affecting the objectivity of restorations and teeth. The use of dental CAD / CAM technology to make all-ceramic restorations has opened up a new way for the automatic processing of restorations and the production of high-strength all-ceramic crowns and bridges. The color of uncolored zirconia porcelain blocks is mostly white to ivory. Although it can simulate the color of natural teeth to a certain extent, it cannot meet the clinical requirements for the color of restorations. Only by coloring zirconia and adjusting the color and light transmittance of zirconia to be close to the color and light transmittance of the tooth to be restored can the needs of customers be met. At present, the coloring technology of zirconia ceramic block mainly includes internal dyeing meth...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B41/85
Inventor 陈志杰
Owner QINHUANGDAO ZEKENI CERAMIC TECH CO LTD
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