Dental ternary opaque baked porcelain powder, preparation method and color matching method
A technology of ceramic powder and porcelain powder, applied in dental preparations, dentistry, dental prosthesis, etc., can solve the problems of easy firing discoloration, coloring instability, etc., to reduce coloring instability, color and other performance effects , the effect of improving efficiency
Active Publication Date: 2022-05-13
洛阳北苑新材料技术有限公司
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Problems solved by technology
[0004]
In order to overcome the deficiencies in the background technology, the inventor found that the coloring in the background technology is not stable, and it is easy to burn and change color, especially when the ceramic colorant is directly mixed into the ceramic powder base material, it becomes more serious.
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Embodiment 1
[0039] Example 1: See Figure 1-5 ;
[0040] This embodiment provides a three-component color opaque ceramic powder for dentistry, a preparation method and a color matching method.
[0041] At present, Vita 16-color shade guides and 26-color 3DMaster shade guides are often used clinically for intraoral color comparison, and then the same color porcelain restorations are processed for restoration. The above two color guides cover almost all the color numbers of real teeth. Through data analysis and practical application of the color comparison boards, three kinds of ternary opaque ceramics that can be directly applied in the color matching process are prepared in this example. Powder: red, yellow and white opaque ceramic powders, the three colors of opaque ceramic powders are mixed in a certain proportion, and all the colors in the color guide can be made by adding a small amount of ceramic pigment. Not only simplifies the color matching steps, but also the color matching pro...
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Abstract
The invention discloses a dental ternary opaque baked porcelain powder, a preparation method and a color matching method, and relates to a dental ternary opaque baked porcelain powder which is composed of porcelain powder with three basic colors of red, yellow and white. The preparation method of the ternary opaque baked porcelain powder comprises the following steps: weighing and proportioning according to the chemical composition of the colored porcelain powder, ball-milling and mixing, melting at a high temperature of 1400 DEG C, quenching with water and quenching, drying to obtain a frit, and ball-milling and sieving to obtain the colored porcelain powder. The color matching method of the ternary opaque baked porcelain powder comprises the following steps: detecting the porcelain powder with the color to obtain a basic color value index of the ternary opaque porcelain powder; performing blending according to the basic color value index to obtain roughly-prepared porcelain powder; and adding a trace amount of additional pigment to obtain the final color matching porcelain powder. According to the invention, the ceramic powder with three basic colors of red, yellow and white is used for replacing subsequent color matching of a large amount of additional ceramic pigments, so that the use amount of the additional pigments is reduced, the coloring effect is stabilized, unnecessary data processing is reduced, and the color matching efficiency is improved.
Description
technical field [0001] The invention belongs to the technical field of dental restoration, and relates to the technical field of preparation of ceramics for dental restoration, in particular to a dental three-element opaque ceramic powder, a preparation method and a color matching method. Background technique [0002] A good dental porcelain restoration not only requires a good combination of porcelain and alloy, but also requires the porcelain material to completely cover the color of the alloy base, and more importantly, the color of the porcelain restoration should be similar to that of natural teeth. The opaque porcelain layer is in the transition layer between the metal crown and the dentin layer (body porcelain layer) in the whole porcelain restoration. It should not only cover the color of the alloy, but also be consistent with the color of the body porcelain. Therefore, the color matching research of opaque porcelain is also very important. [0003] Existing studies...
Claims
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IPC IPC(8): C04B35/14C04B35/626A61K6/831A61K6/78A61K6/15
CPCC04B35/14C04B35/62605C04B35/62665A61K6/831A61K6/78A61K6/15C04B2235/9661C04B2235/3229C04B2235/3244C04B2235/3232C04B2235/3272C04B2235/3248C04B2235/3224C04B2235/3472C04B2235/3201C04B2235/3208C04B2235/3409C04B2235/3267C04B2235/3239C04B2235/3293Y02P40/60
Inventor 姚海瑞孙汇光丰文祥孙会扩李永程倪元和李莉莉李德臣范淑航王志伟
Owner 洛阳北苑新材料技术有限公司