Production equipment and method for dental all-ceramic restoration

A technology for manufacturing equipment and manufacturing methods, used in dental prostheses, additive manufacturing, manufacturing tools, etc., can solve problems such as complex processes, and achieve the effects of good color and light transmittance, excellent corrosion resistance, and large teeth.

Inactive Publication Date: 2016-03-30
HEBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this method requires special coloring, and the process is more complicated

Method used

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  • Production equipment and method for dental all-ceramic restoration
  • Production equipment and method for dental all-ceramic restoration
  • Production equipment and method for dental all-ceramic restoration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] Manufacture of zirconia dental all-ceramic crowns.

[0051] 1. Configuration of zirconia ceramic slurry:

[0052] 1.1 The electronic balance accurately weighs 60% zirconia powder, 30% deionized water and 10% pore-forming agent starch

[0053] 1.2 Put the zirconia powder, water and pore-forming agent of various mass fractions in a ball mill jar, and ball mill at a speed of 800r / min for 4 hours to obtain a ceramic slurry.

[0054] 2. Forming of zirconia all-ceramic restoration body (see figure 2 and image 3 ):

[0055] 2.1 Firstly, the model of the restoration is designed by 3D CAD software, and then according to the process requirements of the product, the restoration is sliced ​​and layered according to a certain thickness to obtain the 2D cross-sectional information of each layer;

[0056] 2.2 Put the configured zirconia ceramic slurry into the feed box 18 and the extrusion forming head 5, start the air pump 8, and supply the zirconia in the extrusion forming hea...

Embodiment 2

[0071] Fabrication of alumina all-ceramic crowns and bridges.

[0072] First, accurately weigh 50% alumina powder, 30% deionized water, 10% ammonium bicarbonate, 5% wood knot soil and 5% starch with an electronic balance. The alumina powder, water and additives of various mass fractions were placed in a ball mill jar, and ball milled at a speed of 800r / min for 4 hours to obtain a ceramic slurry.

[0073] Put the "3D printed" zirconia body in a drying furnace and dry it at 300°C for 100 minutes; then sinter the dried composite body at 1280°C in a high-temperature sintering furnace to obtain porous alumina ceramics .

[0074] Other steps are identical with embodiment 1.

Embodiment 3

[0076] Fabrication of zirconia-toughened alumina dental all-ceramic triple bridge restorations.

[0077] First, accurately weigh 55% zirconia-toughened alumina powder, 30% deionized water and 15% pore-forming agent with an electronic balance. The alumina powder, water and pore-forming agent of each mass fraction were placed in a ball mill jar, and ball milled at a speed of 800 r / min for 4 hours to obtain a ceramic slurry.

[0078] Put the "3D printed" zirconia body in a drying furnace and dry it at 300°C for 100 minutes; then sinter the dried composite body at 1420°C in a high-temperature sintering furnace to obtain porous alumina ceramics .

[0079] Other steps are identical with embodiment 1.

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Abstract

The invention discloses production equipment and method for a dental all-ceramic restoration. The production equipment comprises a three-dimensional motion control platform, a ceramic slurry extrusion molding head, a feeding mechanism, a gas supply and gas pressure control device and a control system, wherein the three-dimensional motion control platform comprises a molding platform, a portal frame, a base, an X-direction drive mechanism, an X-direction precision linear module slider, a Y-direction drive mechanism, a Y-direction precision linear module slider, a Z-direction drive mechanism and a Z-direction precision linear module slider; the ceramic slurry extrusion molding head comprises a cavity cover, a feeding cavity, a two-position two-way solenoid valve, a nozzle and a gas guide pipe for conveying gas pressure. The production method adopts the production equipment and comprises the following steps: 1, preparing ceramic slurry; 2, molding a restoration blank; 3, producing porous ceramic; 4, producing a glass-ceramic composite phase; 5, performing grinding adjustment on the glass-ceramic complex to obtain the dental all-ceramic restoration.

Description

technical field [0001] The invention relates to dental restoration technology, in particular to a manufacturing device and method for a dental all-ceramic restoration. Background technique [0002] Dental all-ceramic restorations have good color and translucency, and the appearance is close to natural teeth. In particular, dental all-ceramic restorations also have excellent biocompatibility, corrosion resistance, and outstanding wear resistance, and are currently the focus of research and development in dental restoration technology. [0003] At present, the production methods of dental all-ceramic restorations include: traditional powder slurry sintered ceramic method, powder slurry coated glass infiltration ceramic method, CAD / CAM machinable ceramic method, electrophoretic deposition ceramics, casting glass ceramics method and hot press casting glass ceramic method. [0004] 1. Traditional powder slurry sintered ceramic method [0005] The production process of powder s...

Claims

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Application Information

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IPC IPC(8): C04B38/06C04B38/02C04B35/48C04B35/10C04B41/85A61C13/083B28B1/00
CPCC04B38/0645A61C13/0004A61C13/0019A61C13/083B28B1/001C03C3/04C04B35/10C04B35/48C04B41/009C04B41/5022C04B2235/3244C04B2235/349C04B38/02
Inventor 朱东彬孙晨楚锐清张争艳
Owner HEBEI UNIV OF TECH
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